{"id":41453,"date":"2026-04-27T14:00:45","date_gmt":"2026-04-27T11:00:45","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/neden-dongu-kontrol-ifadelerine-ihtiyac-duyariz\/"},"modified":"2026-04-27T14:00:45","modified_gmt":"2026-04-27T11:00:45","slug":"neden-dongu-kontrol-ifadelerine-ihtiyac-duyariz","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/neden-dongu-kontrol-ifadelerine-ihtiyac-duyariz\/","title":{"rendered":"Neden D\u00f6ng\u00fc Kontrol \u0130fadelerine \u0130htiya\u00e7 Duyar\u0131z?"},"content":{"rendered":"<pre class=\"language-html\"><code>&lt;title&gt;Python'da break, continue ve pass Kullan\u0131m\u0131: D\u00f6ng\u00fc Kontrol\u00fc Rehberi&lt;\/title&gt;\n&lt;meta name=&quot;description&quot; content=&quot;Python'da d\u00f6ng\u00fclerin ak\u0131\u015f\u0131n\u0131 kontrol etmeyi \u00f6\u011frenin. break, continue ve pass ifadelerinin ne i\u015fe yarad\u0131\u011f\u0131n\u0131, nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 ve pratik \u00f6rneklerini ke\u015ffedin.&quot;&gt;\n\n&lt;article&gt;\n    &lt;p&gt;Python'da d\u00f6ng\u00fclerle \u00e7al\u0131\u015f\u0131rken, belirli ko\u015fullara g\u00f6re d\u00f6ng\u00fc ak\u0131\u015f\u0131n\u0131 y\u00f6netmek isteyebilirsiniz. \u0130\u015fte tam bu noktada &lt;code&gt;break&lt;\/code&gt;, &lt;code&gt;continue&lt;\/code&gt; ve &lt;code&gt;pass&lt;\/code&gt; ifadeleri devreye giriyor. Bu \u00fc\u00e7 g\u00fc\u00e7l\u00fc ara\u00e7, kodunuzun daha verimli, esnek ve okunabilir olmas\u0131n\u0131 sa\u011flar. Gelin, bu ifadelerin ne oldu\u011funu, ne zaman ve nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 ad\u0131m ad\u0131m \u00f6\u011frenelim.&lt;\/p&gt;\n\n    &lt;h2&gt;Neden D\u00f6ng\u00fc Kontrol \u0130fadelerine \u0130htiya\u00e7 Duyar\u0131z?&lt;\/h2&gt;\n\n    &lt;p&gt;D\u00f6ng\u00fcler, belirli bir kod blo\u011funu tekrar tekrar \u00e7al\u0131\u015ft\u0131rmak i\u00e7in harika ara\u00e7lard\u0131r. Ancak her zaman d\u00f6ng\u00fcn\u00fcn ba\u015f\u0131ndan sonuna kadar t\u00fcm ad\u0131mlar\u0131 tamamlamam\u0131z gerekmeyebilir. Bazen, belirli bir ko\u015ful sa\u011fland\u0131\u011f\u0131nda d\u00f6ng\u00fcden hemen \u00e7\u0131kmak isteyebiliriz. Ya da bazen, d\u00f6ng\u00fcn\u00fcn o anki ad\u0131m\u0131n\u0131 atlay\u0131p bir sonraki ad\u0131ma ge\u00e7mek isteyebiliriz. \u0130\u015fte bu t\u00fcr durumlarda, d\u00f6ng\u00fc kontrol ifadeleri hayat kurtar\u0131r. Bu ifadeler sayesinde, d\u00f6ng\u00fcn\u00fcn normal i\u015fleyi\u015fini de\u011fi\u015ftirebilir, program\u0131m\u0131z\u0131n daha ak\u0131ll\u0131ca davranmas\u0131n\u0131 sa\u011flayabiliriz. \u00d6rne\u011fin, bir listedeki t\u00fcm say\u0131lar\u0131 toplarken, negatif bir say\u0131ya denk geldi\u011fimizde toplama i\u015flemini durdurmak isteyebiliriz. Ya da bir dosyay\u0131 okurken, belirli bir sat\u0131r\u0131 i\u015flemek istemedi\u011fimizde o sat\u0131r\u0131 atlamak isteyebiliriz. Bu kontrol mekanizmalar\u0131, kodumuzun daha \u00f6ng\u00f6r\u00fclebilir ve y\u00f6netilebilir olmas\u0131n\u0131 sa\u011flar.&lt;\/p&gt;\n\n    &lt;p&gt;Bu esneklik, \u00f6zellikle b\u00fcy\u00fck veri setleriyle \u00e7al\u0131\u015f\u0131rken veya karma\u015f\u0131k algoritmalar geli\u015ftirirken \u00e7ok \u00f6nemlidir. D\u00f6ng\u00fclerinizi ak\u0131ll\u0131ca kontrol ederek, gereksiz i\u015flemleri \u00f6nleyebilir, program\u0131n\u0131z\u0131n performans\u0131n\u0131 art\u0131rabilir ve hatalar\u0131 daha kolay tespit edebilirsiniz. Dahas\u0131, bu ifadeler, kodunuzun niyetini daha a\u00e7\u0131k bir \u015fekilde ifade etmenize yard\u0131mc\u0131 olur. Bir &lt;code&gt;break&lt;\/code&gt; ifadesini g\u00f6rd\u00fc\u011f\u00fcn\u00fczde, d\u00f6ng\u00fcn\u00fcn belirli bir noktada sona erece\u011fini anlars\u0131n\u0131z. Benzer \u015fekilde, bir &lt;code&gt;continue&lt;\/code&gt; ifadesi, o ad\u0131mdaki i\u015flemlerin atlanaca\u011f\u0131n\u0131 belirtir. Bu da kodun okunabilirli\u011fini ve bak\u0131m\u0131n\u0131 kolayla\u015ft\u0131r\u0131r. Bu nedenle, Python'da d\u00f6ng\u00fc kontrol ifadelerini anlamak ve do\u011fru kullanmak, her Python geli\u015ftiricisi i\u00e7in temel bir beceridir.&lt;\/p&gt;\n\n    &lt;p&gt;Bu makalede, &lt;code&gt;break&lt;\/code&gt;, &lt;code&gt;continue&lt;\/code&gt; ve &lt;code&gt;pass&lt;\/code&gt; ifadelerinin her birini ayr\u0131 ayr\u0131 inceleyecek, ne zaman ve neden kullan\u0131lmas\u0131 gerekti\u011fini a\u00e7\u0131klayacak ve bol bol kod \u00f6rne\u011fiyle peki\u015ftirece\u011fiz. Ayr\u0131ca, bu ifadelerin ger\u00e7ek d\u00fcnya senaryolar\u0131nda nas\u0131l kullan\u0131ld\u0131\u011f\u0131na dair pratik \u00f6rnekler de bulacaks\u0131n\u0131z. Amac\u0131m\u0131z, bu konular\u0131 s\u0131f\u0131rdan ba\u015flayarak herkesin anlayabilece\u011fi bir dille anlatmak ve d\u00f6ng\u00fclerinizi daha etkili bir \u015fekilde kontrol etmenizi sa\u011flamakt\u0131r.&lt;\/p&gt;\n\n    &lt;h2&gt;Temel D\u00f6ng\u00fc Yap\u0131lar\u0131: for ve while&lt;\/h2&gt;\n\n    &lt;p&gt;&lt;code&gt;break&lt;\/code&gt;, &lt;code&gt;continue&lt;\/code&gt; ve &lt;code&gt;pass&lt;\/code&gt; ifadelerini daha iyi anlamak i\u00e7in \u00f6ncelikle Python'daki temel d\u00f6ng\u00fc yap\u0131lar\u0131 olan &lt;code&gt;for&lt;\/code&gt; ve &lt;code&gt;while&lt;\/code&gt; d\u00f6ng\u00fclerine h\u0131zl\u0131ca g\u00f6z atmam\u0131z faydal\u0131 olacakt\u0131r. &lt;code&gt;for&lt;\/code&gt; d\u00f6ng\u00fcs\u00fc genellikle bir dizinin (liste, tuple, string vb.) veya bir aral\u0131\u011f\u0131n elemanlar\u0131 \u00fczerinde yineleme yapmak i\u00e7in kullan\u0131l\u0131r. Belirli bir say\u0131da tekrar yapaca\u011f\u0131m\u0131z zamanlar i\u00e7in idealdir. \u00d6rne\u011fin, bir listedeki her bir \u00f6\u011feyi i\u015flemek istedi\u011fimizde &lt;code&gt;for&lt;\/code&gt; d\u00f6ng\u00fcs\u00fcn\u00fc tercih ederiz. &lt;code&gt;while&lt;\/code&gt; d\u00f6ng\u00fcs\u00fc ise, belirli bir ko\u015ful &lt;code&gt;True&lt;\/code&gt; oldu\u011fu s\u00fcrece kod blo\u011funu tekrar tekrar \u00e7al\u0131\u015ft\u0131r\u0131r. Bu, tekrar say\u0131s\u0131n\u0131n \u00f6nceden bilinmedi\u011fi durumlarda daha kullan\u0131\u015fl\u0131d\u0131r; ko\u015ful sa\u011fland\u0131\u011f\u0131 s\u00fcrece d\u00f6ng\u00fc devam eder.&lt;\/p&gt;\n\n    &lt;p&gt;&lt;code&gt;for&lt;\/code&gt; d\u00f6ng\u00fcs\u00fcn\u00fcn temel yap\u0131s\u0131 \u015f\u00f6yledir:<\/code><\/pre>\n<p>python<br \/>\n    for eleman in dizi:<br \/>\n        # eleman ile yap\u0131lacak i\u015flemler<\/p>\n<pre class=\"language-\"><code>Burada &lt;code&gt;dizi&lt;\/code&gt;, \u00fczerinde d\u00f6ng\u00fc kurulacak olan listedir ve &lt;code&gt;eleman&lt;\/code&gt; ise her ad\u0131mda dizinin s\u0131radaki \u00f6\u011fesini temsil eder. \u00d6rne\u011fin, bir say\u0131lar listesinin elemanlar\u0131n\u0131 ekrana yazd\u0131rmak i\u00e7in \u015f\u00f6yle bir kod yazabiliriz:<\/code><\/pre>\n<p>python<br \/>\n    sayilar = [1, 2, 3, 4, 5]<br \/>\n    for sayi in sayilar:<br \/>\n        print(sayi)<\/p>\n<pre class=\"language-\"><code>Bu kod, 1'den 5'e kadar olan say\u0131lar\u0131 alt alta yazd\u0131racakt\u0131r. &lt;code&gt;range()&lt;\/code&gt; fonksiyonu da &lt;code&gt;for&lt;\/code&gt; d\u00f6ng\u00fcs\u00fcyle s\u0131k\u00e7a kullan\u0131l\u0131r ve belirli bir aral\u0131kta say\u0131lar \u00fcretmek i\u00e7in kullan\u0131l\u0131r. \u00d6rne\u011fin, &lt;code&gt;range(5)&lt;\/code&gt;, 0'dan 4'e kadar olan say\u0131lar\u0131 \u00fcretir.&lt;\/p&gt;\n\n    &lt;p&gt;&lt;code&gt;while&lt;\/code&gt; d\u00f6ng\u00fcs\u00fcn\u00fcn temel yap\u0131s\u0131 ise \u015f\u00f6yledir:<\/code><\/pre>\n<p>python<br \/>\n    while kosul:<br \/>\n        # kosul True oldu\u011fu s\u00fcrece yap\u0131lacak i\u015flemler<\/p>\n<pre class=\"language-\"><code>Burada &lt;code&gt;kosul&lt;\/code&gt;, her d\u00f6ng\u00fc ad\u0131m\u0131nda kontrol edilen bir boolean ifadedir. Ko\u015ful &lt;code&gt;True&lt;\/code&gt; oldu\u011fu s\u00fcrece d\u00f6ng\u00fc devam eder, &lt;code&gt;False&lt;\/code&gt; oldu\u011funda d\u00f6ng\u00fc sona erer. \u00d6rne\u011fin, bir saya\u00e7 5'ten k\u00fc\u00e7\u00fck oldu\u011fu s\u00fcrece ekrana &quot;Merhaba&quot; yazd\u0131ran bir &lt;code&gt;while&lt;\/code&gt; d\u00f6ng\u00fcs\u00fc \u015f\u00f6yle g\u00f6r\u00fcnebilir:<\/code><\/pre>\n<p>python<br \/>\n    sayac = 0<br \/>\n    while sayac < 5:\n        print(\"Merhaba\")\n        sayac += 1\n    \n\n<pre class=\"language-\"><code>Bu kod, &quot;Merhaba&quot; kelimesini be\u015f kez ekrana yazd\u0131racakt\u0131r. &lt;code&gt;while&lt;\/code&gt; d\u00f6ng\u00fclerinde, d\u00f6ng\u00fc ko\u015fulunu de\u011fi\u015ftiren bir ifade (burada &lt;code&gt;sayac += 1&lt;\/code&gt;) bulunmas\u0131 \u00e7ok \u00f6nemlidir. Aksi takdirde, ko\u015ful hi\u00e7bir zaman &lt;code&gt;False&lt;\/code&gt; olmayaca\u011f\u0131 i\u00e7in sonsuz bir d\u00f6ng\u00fcye gireriz ki bu da program\u0131m\u0131z\u0131n kilitlenmesine neden olabilir. Bu temel yap\u0131lar\u0131 anlad\u0131\u011f\u0131m\u0131zda, bu d\u00f6ng\u00fclerin ak\u0131\u015f\u0131n\u0131 nas\u0131l kontrol edebilece\u011fimizi \u00f6\u011frenmeye haz\u0131r\u0131z.&lt;\/p&gt;\n\n    &lt;h2&gt;break: D\u00f6ng\u00fcy\u00fc An\u0131nda Durdurma&lt;\/h2&gt;\n\n    &lt;p&gt;&lt;code&gt;break&lt;\/code&gt; ifadesi, bir d\u00f6ng\u00fcden (&lt;code&gt;for&lt;\/code&gt; veya &lt;code&gt;while&lt;\/code&gt;) i\u00e7inde bulundu\u011fu d\u00f6ng\u00fcden hemen \u00e7\u0131kmak i\u00e7in kullan\u0131l\u0131r. D\u00f6ng\u00fcn\u00fcn geri kalan iterasyonlar\u0131 atlan\u0131r ve program ak\u0131\u015f\u0131 d\u00f6ng\u00fcden sonraki ilk ifadeye ge\u00e7er. Bu, belirli bir ko\u015ful kar\u015f\u0131land\u0131\u011f\u0131nda d\u00f6ng\u00fcy\u00fc zorla sonland\u0131rmak istedi\u011fimiz durumlar i\u00e7in m\u00fckemmeldir. \u00d6rne\u011fin, bir listede belirli bir de\u011feri ararken, de\u011feri buldu\u011fumuz anda d\u00f6ng\u00fcy\u00fc durdurmak isteyebiliriz. Bu, gereksiz yere listenin geri kalan\u0131n\u0131 taramam\u0131z\u0131 engeller ve program\u0131 daha verimli hale getirir.&lt;\/p&gt;\n\n    &lt;p&gt;&lt;code&gt;break&lt;\/code&gt; ifadesinin kullan\u0131m\u0131 olduk\u00e7a basittir. Bir &lt;code&gt;if&lt;\/code&gt; blo\u011funun i\u00e7ine yerle\u015ftirilir ve ko\u015ful do\u011fru oldu\u011funda \u00e7al\u0131\u015ft\u0131r\u0131l\u0131r. \u0130\u015fte bir \u00f6rnek: Bir listede 10 say\u0131s\u0131n\u0131 arayan bir &lt;code&gt;for&lt;\/code&gt; d\u00f6ng\u00fcs\u00fc d\u00fc\u015f\u00fcnelim.<\/code><\/pre>\n<p>python<br \/>\n    sayilar = [1, 5, 8, 12, 10, 15, 20]<br \/>\n    for sayi in sayilar:<br \/>\n        if sayi == 10:<br \/>\n            print(&#8220;10 say\u0131s\u0131 bulundu!&#8221;)<br \/>\n            break  # D\u00f6ng\u00fcden \u00e7\u0131k<br \/>\n        print(f&#8221;\u0130\u015flenen say\u0131: {sayi}&#8221;)<br \/>\n    print(&#8220;D\u00f6ng\u00fc sona erdi.&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu kod \u00e7al\u0131\u015ft\u0131\u011f\u0131nda, \u00e7\u0131kt\u0131 \u015fu \u015fekilde olacakt\u0131r:<\/code><\/pre>\n<p>    \u0130\u015flenen say\u0131: 1<br \/>\n    \u0130\u015flenen say\u0131: 5<br \/>\n    \u0130\u015flenen say\u0131: 8<br \/>\n    10 say\u0131s\u0131 bulundu!<br \/>\n    D\u00f6ng\u00fc sona erdi.<\/p>\n<pre class=\"language-\"><code>G\u00f6rd\u00fc\u011f\u00fcn\u00fcz gibi, &lt;code&gt;sayi&lt;\/code&gt; de\u011fi\u015fkeni 10'a e\u015fit oldu\u011funda &lt;code&gt;break&lt;\/code&gt; ifadesi \u00e7al\u0131\u015ft\u0131, d\u00f6ng\u00fcden \u00e7\u0131k\u0131ld\u0131 ve &quot;D\u00f6ng\u00fc sona erdi.&quot; mesaj\u0131 yazd\u0131r\u0131ld\u0131. 15 ve 20 say\u0131lar\u0131 i\u015flenmedi bile.&lt;\/p&gt;\n\n    &lt;p&gt;Bir ba\u015fka \u00f6rnek olarak, bir &lt;code&gt;while&lt;\/code&gt; d\u00f6ng\u00fcs\u00fcnde &lt;code&gt;break&lt;\/code&gt; kullan\u0131m\u0131n\u0131 g\u00f6relim. Kullan\u0131c\u0131dan 0 girene kadar giri\u015f almaya devam eden bir program:<\/code><\/pre>\n<p>python<br \/>\n    while True:  # Sonsuz d\u00f6ng\u00fc gibi g\u00f6r\u00fcnebilir ama break ile kontrol ediliyor<br \/>\n        giris = input(&#8220;Bir say\u0131 girin (\u00e7\u0131kmak i\u00e7in 0): &#8220;)<br \/>\n        if giris == &#8216;0&#8217;:<br \/>\n            print(&#8220;\u00c7\u0131k\u0131l\u0131yor&#8230;&#8221;)<br \/>\n            break  # Kullan\u0131c\u0131 0 girdi\u011finde d\u00f6ng\u00fcy\u00fc k\u0131r<br \/>\n        try:<br \/>\n            sayi = int(giris)<br \/>\n            print(f&#8221;Girdi\u011finiz say\u0131: {sayi}&#8221;)<br \/>\n        except ValueError:<br \/>\n            print(&#8220;Ge\u00e7ersiz giri\u015f. L\u00fctfen bir say\u0131 girin.&#8221;)<br \/>\n    print(&#8220;Program sonland\u0131.&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu \u00f6rnekte, &lt;code&gt;while True:&lt;\/code&gt; ile bir t\u00fcr sonsuz d\u00f6ng\u00fc ba\u015flat\u0131l\u0131r. Ancak, kullan\u0131c\u0131 '0' girdi\u011finde &lt;code&gt;if giris == '0':&lt;\/code&gt; ko\u015fulu sa\u011flan\u0131r ve &lt;code&gt;break&lt;\/code&gt; ifadesi \u00e7al\u0131\u015farak d\u00f6ng\u00fcden \u00e7\u0131k\u0131l\u0131r. Bu, kullan\u0131c\u0131 istedi\u011fi zaman programdan \u00e7\u0131kabilmesini sa\u011flar. &lt;code&gt;break&lt;\/code&gt;, i\u00e7 i\u00e7e d\u00f6ng\u00fclerde de kullan\u0131labilir. Ancak dikkat edilmesi gereken nokta, &lt;code&gt;break&lt;\/code&gt; ifadesinin sadece en i\u00e7teki d\u00f6ng\u00fcden \u00e7\u0131kaca\u011f\u0131d\u0131r. E\u011fer d\u0131\u015ftaki d\u00f6ng\u00fcden de \u00e7\u0131kmak istiyorsan\u0131z, ek mant\u0131k kurman\u0131z gerekebilir.&lt;\/p&gt;\n\n    &lt;h3&gt;Ger\u00e7ek D\u00fcnya Senaryosu: Kullan\u0131c\u0131 Giri\u015fi Do\u011frulama&lt;\/h3&gt;\n\n    &lt;p&gt;Bir web uygulamas\u0131nda veya masa\u00fcst\u00fc uygulamas\u0131nda, kullan\u0131c\u0131dan bir \u015fifre girmesini istedi\u011finizi ve bu \u015fifrenin belirli kriterlere uymas\u0131 gerekti\u011fini d\u00fc\u015f\u00fcn\u00fcn. Kullan\u0131c\u0131 do\u011fru \u015fifreyi girene kadar s\u00fcrekli olarak \u015fifre girmesini istemeniz gerekebilir. Bu durumda &lt;code&gt;break&lt;\/code&gt; ifadesi harika bir \u00e7\u00f6z\u00fcm sunar.<\/code><\/pre>\n<p>python<br \/>\n    dogru_sifre = &#8220;Python123&#8221;<br \/>\n    girilen_sifre = &#8220;&#8221;<\/p>\n<p>    while girilen_sifre != dogru_sifre:<br \/>\n        girilen_sifre = input(&#8220;L\u00fctfen \u015fifrenizi girin: &#8220;)<br \/>\n        if girilen_sifre == dogru_sifre:<br \/>\n            print(&#8220;\u015eifre do\u011fru! Giri\u015f yap\u0131l\u0131yor&#8230;&#8221;)<br \/>\n            # break burada olmasa bile d\u00f6ng\u00fc ko\u015fulu sa\u011flanaca\u011f\u0131 i\u00e7in d\u00f6ng\u00fc bitecektir.<br \/>\n            # Ancak d\u00f6ng\u00fcn\u00fcn i\u00e7inde ba\u015fka i\u015flemler varsa ve hemen \u00e7\u0131kmak istenirse break kullan\u0131labilir.<br \/>\n        else:<br \/>\n            print(&#8220;Yanl\u0131\u015f \u015fifre. L\u00fctfen tekrar deneyin.&#8221;)<br \/>\n    print(&#8220;Ho\u015f geldiniz!&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu \u00f6rnekte, d\u00f6ng\u00fc ko\u015fulu zaten do\u011fru \u015fifre girildi\u011finde sonlanaca\u011f\u0131 i\u00e7in &lt;code&gt;break&lt;\/code&gt;'e do\u011frudan ihtiya\u00e7 duyulmayabilir. Ancak, e\u011fer d\u00f6ng\u00fc i\u00e7inde ba\u015fka karma\u015f\u0131k i\u015flemler olsayd\u0131 ve do\u011fru \u015fifre girildi\u011finde bu i\u015flemlerin yar\u0131m kalmas\u0131n\u0131 ve hemen d\u00f6ng\u00fcden \u00e7\u0131k\u0131lmas\u0131n\u0131 isteseydik, &lt;code&gt;break&lt;\/code&gt; \u00e7ok i\u015fe yarard\u0131. \u00d6rne\u011fin, \u015fifre do\u011fruland\u0131ktan sonra ek bir i\u015flem yap\u0131l\u0131p hemen d\u00f6ng\u00fcden \u00e7\u0131k\u0131lmak istendi\u011finde:<\/code><\/pre>\n<p>python<br \/>\n    dogru_sifre = &#8220;Python123&#8221;<br \/>\n    girilen_sifre = &#8220;&#8221;<br \/>\n    deneme_hakki = 3<\/p>\n<p>    while deneme_hakki > 0:<br \/>\n        girilen_sifre = input(f&#8221;L\u00fctfen \u015fifrenizi girin (Kalan deneme hakk\u0131: {deneme_hakki}): &#8220;)<br \/>\n        if girilen_sifre == dogru_sifre:<br \/>\n            print(&#8220;\u015eifre do\u011fru! Giri\u015f yap\u0131l\u0131yor&#8230;&#8221;)<br \/>\n            # Ba\u015far\u0131l\u0131 giri\u015f sonras\u0131 ek i\u015flemler yap\u0131labilir ve d\u00f6ng\u00fcden \u00e7\u0131k\u0131labilir<br \/>\n            break # D\u00f6ng\u00fcden \u00e7\u0131k\u0131\u015f<br \/>\n        else:<br \/>\n            print(&#8220;Yanl\u0131\u015f \u015fifre.&#8221;)<br \/>\n            deneme_hakki -= 1<\/p>\n<p>    if deneme_hakki == 0:<br \/>\n        print(&#8220;Deneme hakk\u0131n\u0131z bitti. Hesab\u0131n\u0131z kilitlendi.&#8221;)<br \/>\n    else:<br \/>\n        print(&#8220;Ho\u015f geldiniz!&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu senaryoda, kullan\u0131c\u0131 do\u011fru \u015fifreyi girdi\u011finde &lt;code&gt;break&lt;\/code&gt; ifadesi d\u00f6ng\u00fcy\u00fc sonland\u0131r\u0131r. Bu, kullan\u0131c\u0131 deneyimini iyile\u015ftirir \u00e7\u00fcnk\u00fc do\u011fru bilgiyi girdikten sonra gereksiz yere tekrar tekrar \u015fifre istemez. &lt;code&gt;break&lt;\/code&gt;, d\u00f6ng\u00fclerin kontrol\u00fcn\u00fc ele almam\u0131z\u0131 ve program ak\u0131\u015f\u0131n\u0131 daha ak\u0131ll\u0131ca y\u00f6netmemizi sa\u011flar.&lt;\/p&gt;\n\n    &lt;h2&gt;continue: Mevcut Ad\u0131m\u0131 Atla, Devam Et&lt;\/h2&gt;\n\n    &lt;p&gt;&lt;code&gt;continue&lt;\/code&gt; ifadesi, &lt;code&gt;break&lt;\/code&gt;'ten farkl\u0131 olarak d\u00f6ng\u00fcy\u00fc tamamen sonland\u0131rmaz. Bunun yerine, d\u00f6ng\u00fcn\u00fcn mevcut iterasyonunda &lt;code&gt;continue&lt;\/code&gt; ifadesinden sonra gelen t\u00fcm kodlar\u0131 atlar ve bir sonraki iterasyona ge\u00e7er. Bu, belirli ko\u015fullar alt\u0131nda d\u00f6ng\u00fcn\u00fcn baz\u0131 ad\u0131mlar\u0131n\u0131n i\u015flenmesini istemedi\u011fimiz durumlarda kullan\u0131\u015fl\u0131d\u0131r. \u00d6rne\u011fin, bir listedeki \u00e7ift say\u0131lar\u0131 i\u015flemek istiyor ancak tek say\u0131lar\u0131 tamamen g\u00f6z ard\u0131 etmek istiyorsak, tek say\u0131lara denk geldi\u011fimizde &lt;code&gt;continue&lt;\/code&gt; kullanabiliriz.&lt;\/p&gt;\n\n    &lt;p&gt;&lt;code&gt;continue&lt;\/code&gt; ifadesi de genellikle bir &lt;code&gt;if&lt;\/code&gt; blo\u011fu i\u00e7inde kullan\u0131l\u0131r. \u0130\u015fte bir \u00f6rnek: 1'den 10'a kadar olan say\u0131lardan sadece \u00e7ift olanlar\u0131 ekrana yazd\u0131rmak i\u00e7in &lt;code&gt;continue&lt;\/code&gt; nas\u0131l kullanabiliriz:<\/code><\/pre>\n<p>python<br \/>\n    for i in range(1, 11):<br \/>\n        if i % 2 != 0:  # E\u011fer say\u0131 tek ise<br \/>\n            continue    # Bu ad\u0131mdaki geri kalan kodlar\u0131 atla ve bir sonraki say\u0131ya ge\u00e7<br \/>\n        print(f&#8221;\u00c7ift say\u0131: {i}&#8221;)<br \/>\n    print(&#8220;D\u00f6ng\u00fc tamamland\u0131.&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu kodun \u00e7\u0131kt\u0131s\u0131 \u015fu \u015fekilde olacakt\u0131r:<\/code><\/pre>\n<p>    \u00c7ift say\u0131: 2<br \/>\n    \u00c7ift say\u0131: 4<br \/>\n    \u00c7ift say\u0131: 6<br \/>\n    \u00c7ift say\u0131: 8<br \/>\n    \u00c7ift say\u0131: 10<br \/>\n    D\u00f6ng\u00fc tamamland\u0131.<\/p>\n<pre class=\"language-\"><code>G\u00f6rd\u00fc\u011f\u00fcn\u00fcz gibi, &lt;code&gt;i&lt;\/code&gt; tek oldu\u011funda &lt;code&gt;continue&lt;\/code&gt; \u00e7al\u0131\u015ft\u0131 ve &lt;code&gt;print&lt;\/code&gt; ifadesi atland\u0131. Sadece \u00e7ift say\u0131lar i\u00e7in &lt;code&gt;print&lt;\/code&gt; ifadesi \u00e7al\u0131\u015ft\u0131.&lt;\/p&gt;\n\n    &lt;p&gt;\u015eimdi de &lt;code&gt;while&lt;\/code&gt; d\u00f6ng\u00fcs\u00fcnde &lt;code&gt;continue&lt;\/code&gt; kullan\u0131m\u0131na bakal\u0131m. Kullan\u0131c\u0131dan 5'ten b\u00fcy\u00fck pozitif say\u0131lar al\u0131p toplam\u0131n\u0131 hesaplayan bir program:<\/code><\/pre>\n<p>python<br \/>\n    toplam = 0<br \/>\n    while True:<br \/>\n        giris = input(&#8220;Pozitif bir say\u0131 girin (5&#8217;ten b\u00fcy\u00fck olmal\u0131, \u00e7\u0131kmak i\u00e7in &#8216;q&#8217;): &#8220;)<br \/>\n        if giris.lower() == &#8216;q&#8217;:<br \/>\n            break # Kullan\u0131c\u0131 &#8216;q&#8217; girerse d\u00f6ng\u00fcden \u00e7\u0131k<\/p>\n<p>        try:<br \/>\n            sayi = int(giris)<br \/>\n            if sayi <= 5:\n                print(\"L\u00fctfen 5'ten b\u00fcy\u00fck bir say\u0131 girin.\")\n                continue # Say\u0131 5'ten k\u00fc\u00e7\u00fck veya e\u015fitse bu ad\u0131m\u0131 atla, tekrar giri\u015f iste\n            toplam += sayi\n            print(f\"Mevcut toplam: {toplam}\")\n        except ValueError:\n            print(\"Ge\u00e7ersiz giri\u015f. L\u00fctfen bir say\u0131 veya 'q' girin.\")\n    print(f\"Nihai toplam: {toplam}\")\n    \n\n<pre class=\"language-\"><code>Bu \u00f6rnekte, kullan\u0131c\u0131 5'ten b\u00fcy\u00fck bir say\u0131 girmedi\u011finde &lt;code&gt;continue&lt;\/code&gt; ifadesi \u00e7al\u0131\u015f\u0131r. Bu, &lt;code&gt;toplam += sayi&lt;\/code&gt; sat\u0131r\u0131n\u0131n \u00e7al\u0131\u015fmas\u0131n\u0131 engeller ve d\u00f6ng\u00fc ba\u015fa d\u00f6ner, kullan\u0131c\u0131dan tekrar giri\u015f ister. Kullan\u0131c\u0131 'q' girerek d\u00f6ng\u00fcden \u00e7\u0131kabilir. &lt;code&gt;continue&lt;\/code&gt;, d\u00f6ng\u00fcn\u00fcn baz\u0131 ad\u0131mlar\u0131n\u0131 esnek bir \u015fekilde atlamam\u0131z\u0131 sa\u011flar, bu da kodumuzu daha temiz ve anla\u015f\u0131l\u0131r hale getirir. \u00d6zellikle veri temizleme veya filtreleme i\u015flemlerinde \u00e7ok faydal\u0131d\u0131r.&lt;\/p&gt;\n\n    &lt;h3&gt;Ger\u00e7ek D\u00fcnya Senaryosu: Veri Filtreleme ve \u0130\u015fleme&lt;\/h3&gt;\n\n    &lt;p&gt;Bir veri analizi projesinde, b\u00fcy\u00fck bir veri setindeki belirli kriterlere uymayan kay\u0131tlar\u0131 atlamak isteyebilirsiniz. \u00d6rne\u011fin, bir \u00f6\u011frenci listesindeki sadece belirli bir notun \u00fczerindeki \u00f6\u011frencilerin bilgilerini i\u015flemek istiyorsunuz.<\/code><\/pre>\n<p>python<br \/>\n    ogrenciler = [<br \/>\n        {&#8220;isim&#8221;: &#8220;Ali&#8221;, &#8220;not&#8221;: 85},<br \/>\n        {&#8220;isim&#8221;: &#8220;Veli&#8221;, &#8220;not&#8221;: 45},<br \/>\n        {&#8220;isim&#8221;: &#8220;Ay\u015fe&#8221;, &#8220;not&#8221;: 92},<br \/>\n        {&#8220;isim&#8221;: &#8220;Fatma&#8221;, &#8220;not&#8221;: 60},<br \/>\n        {&#8220;isim&#8221;: &#8220;Can&#8221;, &#8220;not&#8221;: 30}<br \/>\n    ]<\/p>\n<p>    gecen_ogrenciler = []<\/p>\n<p>    for ogrenci in ogrenciler:<br \/>\n        if ogrenci[&#8220;not&#8221;] < 50:\n            print(f\"{ogrenci['isim']} adl\u0131 \u00f6\u011frenci ba\u015far\u0131s\u0131z oldu, i\u015flem atlan\u0131yor.\")\n            continue  # Notu 50'nin alt\u0131ndaysa bu \u00f6\u011frenciyi i\u015flemeden ge\u00e7\n        \n        # Notu 50 ve \u00fczeri olan \u00f6\u011frencileri i\u015fliyoruz\n        gecen_ogrenciler.append(ogrenci[\"isim\"])\n        print(f\"{ogrenci['isim']} ge\u00e7ti. \u0130\u015flemler tamamland\u0131.\")\n\n    print(\"\\nGe\u00e7en \u00f6\u011frenciler:\", gecen_ogrenciler)\n    \n\n<pre class=\"language-\"><code>Bu kod, 50'nin alt\u0131ndaki notlara sahip \u00f6\u011frencileri atlar ve sadece ba\u015far\u0131l\u0131 olan \u00f6\u011frencilerin isimlerini &lt;code&gt;gecen_ogrenciler&lt;\/code&gt; listesine ekler. &lt;code&gt;continue&lt;\/code&gt; ifadesi sayesinde, ba\u015far\u0131s\u0131z \u00f6\u011frencileri i\u015flemek i\u00e7in ekstra bir &lt;code&gt;if\/else&lt;\/code&gt; blo\u011fu yazmaya gerek kalmaz, kod daha ak\u0131c\u0131 ve okunabilir olur. Bu, veri i\u015fleme pipeline'lar\u0131nda s\u0131k\u00e7a kar\u015f\u0131la\u015f\u0131lan bir durumdur ve &lt;code&gt;continue&lt;\/code&gt; bu t\u00fcr senaryolarda kodun netli\u011fini art\u0131r\u0131r.&lt;\/p&gt;\n\n    &lt;h2&gt;pass: Hi\u00e7bir \u015eey Yapmayan Yer Tutucu&lt;\/h2&gt;\n\n    &lt;p&gt;&lt;code&gt;pass&lt;\/code&gt; ifadesi, Python'da s\u00f6zdizimsel olarak bir ifade gerektiren ancak program\u0131n hi\u00e7bir \u015fey yapmas\u0131n\u0131 istemedi\u011finiz yerlerde kullan\u0131lan bir yer tutucudur. Yani, &lt;code&gt;pass&lt;\/code&gt; bir komut de\u011fildir; sadece &quot;\u015fimdilik buray\u0131 bo\u015f b\u0131rak&quot; demenin bir yoludur. \u00d6rne\u011fin, bir fonksiyon tan\u0131mlad\u0131n\u0131z ancak hen\u00fcz fonksiyonun i\u00e7ini doldurmad\u0131n\u0131z. Ya da bir &lt;code&gt;if&lt;\/code&gt; blo\u011fu olu\u015fturdunuz ama o ko\u015ful sa\u011fland\u0131\u011f\u0131nda ne yapaca\u011f\u0131n\u0131za hen\u00fcz karar vermediniz. Bu gibi durumlarda &lt;code&gt;pass&lt;\/code&gt; kullanmak, s\u00f6zdizimi hatas\u0131 alman\u0131z\u0131 engeller.&lt;\/p&gt;\n\n    &lt;p&gt;&lt;code&gt;pass&lt;\/code&gt;'in tek g\u00f6revi, program\u0131n \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flamakt\u0131r. Kendisi herhangi bir i\u015flem yapmaz, hi\u00e7bir de\u011feri d\u00f6nd\u00fcrmez ve d\u00f6ng\u00fcleri veya program ak\u0131\u015f\u0131n\u0131 etkilemez. Sadece kodun o noktas\u0131nda bir \u015feyler olmas\u0131 gerekti\u011fini belirtir. \u0130\u015fte basit bir \u00f6rnek:<\/code><\/pre>\n<p>python<br \/>\n    # Hen\u00fcz doldurulmam\u0131\u015f bir fonksiyon<br \/>\n    def yakinda_gelistirilecek_fonksiyon():<br \/>\n        pass # \u015eimdilik bir \u015fey yapma<\/p>\n<p>    # Bir if blo\u011fu, ancak ko\u015ful sa\u011fland\u0131\u011f\u0131nda ne yap\u0131laca\u011f\u0131 belli de\u011fil<br \/>\n    x = 10<br \/>\n    if x > 5:<br \/>\n        pass # Daha sonra buray\u0131 dolduraca\u011f\u0131m<br \/>\n    else:<br \/>\n        print(&#8220;x 5&#8217;ten k\u00fc\u00e7\u00fck veya e\u015fit.&#8221;)<\/p>\n<p>    print(&#8220;Program devam ediyor.&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu kod \u00e7al\u0131\u015ft\u0131\u011f\u0131nda hi\u00e7bir \u00e7\u0131kt\u0131 vermez (&lt;code&gt;if&lt;\/code&gt; blo\u011funun &lt;code&gt;else&lt;\/code&gt; k\u0131sm\u0131 \u00e7al\u0131\u015fmad\u0131\u011f\u0131 i\u00e7in) ve &quot;Program devam ediyor.&quot; mesaj\u0131n\u0131 yazd\u0131r\u0131r. &lt;code&gt;pass&lt;\/code&gt; olmasayd\u0131, bo\u015f fonksiyon veya bo\u015f &lt;code&gt;if&lt;\/code&gt; blo\u011fu nedeniyle Python s\u00f6zdizimi hatas\u0131 verirdi.&lt;\/p&gt;\n\n    &lt;p&gt;&lt;code&gt;pass&lt;\/code&gt;'in en yayg\u0131n kullan\u0131m alanlar\u0131ndan biri, soyut s\u0131n\u0131flar (abstract classes) veya temel s\u0131n\u0131flar (base classes) olu\u015ftururken alt s\u0131n\u0131flar\u0131n belirli metotlar\u0131 ezberlemesini (override) zorunlu k\u0131lmakt\u0131r.<\/code><\/pre>\n<p>python<br \/>\n    class Sekil:<br \/>\n        def ciz(self):<br \/>\n            pass # Alt s\u0131n\u0131flar bu metodu ezberlemeli<\/p>\n<p>    class Kare(Sekil):<br \/>\n        def ciz(self):<br \/>\n            print(&#8220;Kare \u00e7iziliyor&#8230;&#8221;)<\/p>\n<p>    class Daire(Sekil):<br \/>\n        def ciz(self):<br \/>\n            print(&#8220;Daire \u00e7iziliyor&#8230;&#8221;)<\/p>\n<p>    kare = Kare()<br \/>\n    kare.ciz()<\/p>\n<p>    daire = Daire()<br \/>\n    daire.ciz()<\/p>\n<p>    # Sekil sinifinin ciz metodu hicbir sey yapmaz.<br \/>\n    # sekil = Sekil()<br \/>\n    # sekil.ciz() # Bu cagrida hicbir sey olmaz.<\/p>\n<pre class=\"language-\"><code>Burada &lt;code&gt;Sekil&lt;\/code&gt; s\u0131n\u0131f\u0131ndaki &lt;code&gt;ciz&lt;\/code&gt; metodu &lt;code&gt;pass&lt;\/code&gt; ile tan\u0131mlanm\u0131\u015ft\u0131r. Bu, &lt;code&gt;Sekil&lt;\/code&gt; s\u0131n\u0131f\u0131ndan t\u00fcretilen her alt s\u0131n\u0131f\u0131n (&lt;code&gt;Kare&lt;\/code&gt;, &lt;code&gt;Daire&lt;\/code&gt; gibi) kendi &lt;code&gt;ciz&lt;\/code&gt; metodunu uygulamas\u0131 gerekti\u011fini belirtir. E\u011fer bir alt s\u0131n\u0131f &lt;code&gt;ciz&lt;\/code&gt; metodunu uygulamazsa, onu \u00e7a\u011f\u0131rd\u0131\u011f\u0131n\u0131zda &lt;code&gt;Sekil&lt;\/code&gt; s\u0131n\u0131f\u0131ndaki bo\u015f &lt;code&gt;pass&lt;\/code&gt; metodu \u00e7al\u0131\u015f\u0131r ve hi\u00e7bir \u015fey olmaz.&lt;\/p&gt;\n\n    &lt;h3&gt;Ger\u00e7ek D\u00fcnya Senaryosu: Yap\u0131sal Tasar\u0131m ve Planlama&lt;\/h3&gt;\n\n    &lt;p&gt;B\u00fcy\u00fck bir projede, kodun genel yap\u0131s\u0131n\u0131 olu\u015ftururken baz\u0131 fonksiyonlar\u0131n veya s\u0131n\u0131flar\u0131n hen\u00fcz tam olarak tasarlanmam\u0131\u015f olmas\u0131 normaldir. Bu durumlarda &lt;code&gt;pass&lt;\/code&gt;, projenin geri kalan k\u0131s\u0131mlar\u0131n\u0131 geli\u015ftirmeye devam etmenizi sa\u011flar. \u00d6rne\u011fin, bir e-ticaret sitesinin sipari\u015f y\u00f6netimi mod\u00fcl\u00fcn\u00fc geli\u015ftiriyorsunuz. Sipari\u015f olu\u015fturma, g\u00fcncelleme, iptal etme gibi fonksiyonlar\u0131n\u0131z olacak.<\/code><\/pre>\n<p>python<br \/>\n    class SiparisYonetimi:<br \/>\n        def siparis_olustur(self, urunler, musteri_id):<br \/>\n            # Sipari\u015f olu\u015fturma mant\u0131\u011f\u0131 buraya gelecek<br \/>\n            print(&#8220;Sipari\u015f olu\u015fturuluyor&#8230;&#8221;)<br \/>\n            pass # TODO: Sipari\u015f veritaban\u0131na kaydedilecek<\/p>\n<p>        def siparis_guncelle(self, siparis_id, yeni_durum):<br \/>\n            # Sipari\u015f g\u00fcncelleme mant\u0131\u011f\u0131 buraya gelecek<br \/>\n            print(f&#8221;Sipari\u015f {siparis_id} g\u00fcncelleniyor&#8230;&#8221;)<br \/>\n            pass # TODO: Sipari\u015f durumu veritaban\u0131nda g\u00fcncellenecek<\/p>\n<p>        def siparis_iptal_et(self, siparis_id):<br \/>\n            # Sipari\u015f iptal etme mant\u0131\u011f\u0131 buraya gelecek<br \/>\n            print(f&#8221;Sipari\u015f {siparis_id} iptal ediliyor&#8230;&#8221;)<br \/>\n            pass # TODO: \u0130ptal i\u015flemleri ve iade s\u00fcreci y\u00f6netilecek<\/p>\n<p>    # \u00d6rnek kullan\u0131m<br \/>\n    yonetici = SiparisYonetimi()<br \/>\n    # yonetici.siparis_olustur([&#8220;Kitap&#8221;, &#8220;Kalem&#8221;], 101)<br \/>\n    # yonetici.siparis_guncelle(500, &#8220;Kargoland\u0131&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu \u00f6rnekte, &lt;code&gt;SiparisYonetimi&lt;\/code&gt; s\u0131n\u0131f\u0131ndaki metotlar &lt;code&gt;pass&lt;\/code&gt; ile tan\u0131mlanm\u0131\u015ft\u0131r. Bu, geli\u015ftiricilerin \u00f6ncelikle s\u0131n\u0131f\u0131n yap\u0131s\u0131n\u0131 ve metot isimlerini belirlemelerine olanak tan\u0131r. Daha sonra, her metotun i\u00e7indeki &lt;code&gt;TODO&lt;\/code&gt; yorumlar\u0131 rehberli\u011finde ilgili mant\u0131klar ad\u0131m ad\u0131m eklenebilir. Bu yakla\u015f\u0131m, projenin erken a\u015famalar\u0131nda bile kodun derlenebilir olmas\u0131n\u0131 sa\u011flar ve geli\u015ftirme s\u00fcrecini kolayla\u015ft\u0131r\u0131r.&lt;\/p&gt;\n\n    &lt;h2&gt;break, continue ve pass Kar\u015f\u0131la\u015ft\u0131rmas\u0131&lt;\/h2&gt;\n\n    &lt;p&gt;Bu \u00fc\u00e7 ifadenin temel farklar\u0131n\u0131 netle\u015ftirmek \u00f6nemlidir. &lt;code&gt;break&lt;\/code&gt;, d\u00f6ng\u00fcden tamamen \u00e7\u0131karak program ak\u0131\u015f\u0131n\u0131 d\u00f6ng\u00fc d\u0131\u015f\u0131na ta\u015f\u0131r. D\u00f6ng\u00fcn\u00fcn geri kalan t\u00fcm ad\u0131mlar\u0131 iptal edilir. &lt;code&gt;continue&lt;\/code&gt; ise sadece mevcut iterasyonu atlar ve d\u00f6ng\u00fcn\u00fcn bir sonraki ad\u0131m\u0131na ge\u00e7ilmesini sa\u011flar. D\u00f6ng\u00fc devam eder. &lt;code&gt;pass&lt;\/code&gt; ise hi\u00e7bir \u015fey yapmaz; sadece s\u00f6zdizimsel bir gereklili\u011fi yerine getiren bir yer tutucudur ve d\u00f6ng\u00fc ak\u0131\u015f\u0131n\u0131 veya program\u0131n genel i\u015fleyi\u015fini etkilemez.&lt;\/p&gt;\n\n    &lt;p&gt;A\u015fa\u011f\u0131daki tablo, bu farklar\u0131 \u00f6zetlemektedir:\n    &lt;table&gt;\n        &lt;thead&gt;\n            &lt;tr&gt;\n                &lt;th&gt;\u0130fade&lt;\/th&gt;\n                &lt;th&gt;Etki Alan\u0131&lt;\/th&gt;\n                &lt;th&gt;Ne Yapar?&lt;\/th&gt;\n                &lt;th&gt;D\u00f6ng\u00fc Ak\u0131\u015f\u0131&lt;\/th&gt;\n            &lt;\/tr&gt;\n        &lt;\/thead&gt;\n        &lt;tbody&gt;\n            &lt;tr&gt;\n                &lt;td&gt;&lt;code&gt;break&lt;\/code&gt;&lt;\/td&gt;\n                &lt;td&gt;En i\u00e7teki d\u00f6ng\u00fc&lt;\/td&gt;\n                &lt;td&gt;D\u00f6ng\u00fcden tamamen \u00e7\u0131kar.&lt;\/td&gt;\n                &lt;td&gt;D\u00f6ng\u00fc sonlan\u0131r.&lt;\/td&gt;\n            &lt;\/tr&gt;\n            &lt;tr&gt;\n                &lt;td&gt;&lt;code&gt;continue&lt;\/code&gt;&lt;\/td&gt;\n                &lt;td&gt;Mevcut d\u00f6ng\u00fc iterasyonu&lt;\/td&gt;\n                &lt;td&gt;Mevcut iterasyondaki geri kalan kodlar\u0131 atlar, bir sonraki iterasyona ge\u00e7er.&lt;\/td&gt;\n                &lt;td&gt;D\u00f6ng\u00fc devam eder.&lt;\/td&gt;\n            &lt;\/tr&gt;\n            &lt;tr&gt;\n                &lt;td&gt;&lt;code&gt;pass&lt;\/code&gt;&lt;\/td&gt;\n                &lt;td&gt;Kod blo\u011fu (fonksiyon, s\u0131n\u0131f, if, while vb.)&lt;\/td&gt;\n                &lt;td&gt;Hi\u00e7bir \u015fey yapmaz, s\u00f6zdizimsel bir yer tutucudur.&lt;\/td&gt;\n                &lt;td&gt;Program ak\u0131\u015f\u0131 etkilenmez.&lt;\/td&gt;\n            &lt;\/tr&gt;\n        &lt;\/tbody&gt;\n    &lt;\/table&gt;\n    Bu kar\u015f\u0131la\u015ft\u0131rma, hangi durumda hangi ifadeyi kullanman\u0131z gerekti\u011fi konusunda size rehberlik edecektir. \u00d6rne\u011fin, bir hatay\u0131 tespit etti\u011finizde ve i\u015flemleri durdurmak istedi\u011finizde &lt;code&gt;break&lt;\/code&gt; kullan\u0131rs\u0131n\u0131z. Belirli bir ko\u015fulda o ad\u0131m\u0131n gereksiz oldu\u011funu d\u00fc\u015f\u00fcnd\u00fc\u011f\u00fcn\u00fczde &lt;code&gt;continue&lt;\/code&gt; kullan\u0131rs\u0131n\u0131z. Ve bir kod blo\u011funun hen\u00fcz tasarlanmad\u0131\u011f\u0131n\u0131 belirtmek istedi\u011finizde &lt;code&gt;pass&lt;\/code&gt; kullan\u0131rs\u0131n\u0131z.&lt;\/p&gt;\n\n    &lt;p&gt;Bu ifadelerin do\u011fru kullan\u0131m\u0131, kodunuzun hem daha verimli \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flar hem de okunabilirli\u011fini art\u0131r\u0131r. &lt;code&gt;break&lt;\/code&gt; ve &lt;code&gt;continue&lt;\/code&gt;, d\u00f6ng\u00fclerde beklenmedik durumlarla ba\u015fa \u00e7\u0131kmak ve program\u0131n mant\u0131\u011f\u0131n\u0131 daha iyi kontrol etmek i\u00e7in kullan\u0131l\u0131rken, &lt;code&gt;pass&lt;\/code&gt; daha \u00e7ok geli\u015ftirme a\u015famas\u0131nda veya belirli tasar\u0131m desenlerini uygularken kullan\u0131l\u0131r. Bu \u00fc\u00e7 arac\u0131n g\u00fcc\u00fcn\u00fc anlamak, Python'da daha yetkin bir geli\u015ftirici olman\u0131n yollar\u0131ndan biridir.&lt;\/p&gt;\n\n    &lt;h2&gt;\u0130leri D\u00fczey Kullan\u0131m ve \u0130pu\u00e7lar\u0131&lt;\/h2&gt;\n\n    &lt;p&gt;&lt;code&gt;break&lt;\/code&gt;, &lt;code&gt;continue&lt;\/code&gt; ve &lt;code&gt;pass&lt;\/code&gt; ifadeleri basit gibi g\u00f6r\u00fcnse de, baz\u0131 ileri d\u00fczey senaryolarda daha ak\u0131ll\u0131ca kullan\u0131labilirler. \u00d6rne\u011fin, i\u00e7 i\u00e7e d\u00f6ng\u00fclerde &lt;code&gt;break&lt;\/code&gt; veya &lt;code&gt;continue&lt;\/code&gt; kullan\u0131rken, hangi d\u00f6ng\u00fcden \u00e7\u0131k\u0131ld\u0131\u011f\u0131n\u0131 veya hangi d\u00f6ng\u00fcn\u00fcn atland\u0131\u011f\u0131n\u0131 netle\u015ftirmek i\u00e7in etiketli d\u00f6ng\u00fcler (labeled loops) gibi daha geli\u015fmi\u015f teknikler bulunsa da, Python'da bu do\u011frudan desteklenmez. Bunun yerine, genellikle bir bayrak (flag) de\u011fi\u015fkeni kullanarak veya fonksiyonlara ay\u0131rarak bu karma\u015f\u0131kl\u0131\u011f\u0131 y\u00f6netmek tercih edilir. Bir bayrak de\u011fi\u015fkeni, d\u00f6ng\u00fcden \u00e7\u0131k\u0131ld\u0131\u011f\u0131nda veya belirli bir ko\u015ful sa\u011fland\u0131\u011f\u0131nda &lt;code&gt;True&lt;\/code&gt; veya &lt;code&gt;False&lt;\/code&gt; de\u011ferini alarak d\u0131\u015far\u0131daki kodlara bilgi aktarabilir.&lt;\/p&gt;\n\n    &lt;p&gt;\u00d6rne\u011fin, i\u00e7 i\u00e7e iki d\u00f6ng\u00fcde belirli bir ko\u015ful sa\u011fland\u0131\u011f\u0131nda her iki d\u00f6ng\u00fcden de \u00e7\u0131kmak istiyorsak, \u015f\u00f6yle bir y\u00f6ntem izleyebiliriz:<\/code><\/pre>\n<p>python<br \/>\n    donem_tamamlandi = False<br \/>\n    for i in range(5):<br \/>\n        for j in range(5):<br \/>\n            print(f&#8221;i: {i}, j: {j}&#8221;)<br \/>\n            if i == 2 and j == 3:<br \/>\n                print(&#8220;Her iki d\u00f6ng\u00fcden de \u00e7\u0131k\u0131l\u0131yor.&#8221;)<br \/>\n                donem_tamamlandi = True<br \/>\n                break  # \u0130\u00e7teki d\u00f6ng\u00fcden \u00e7\u0131k<br \/>\n        if donem_tamamlandi:<br \/>\n            break  # D\u0131\u015ftaki d\u00f6ng\u00fcden de \u00e7\u0131k<br \/>\n    print(&#8220;D\u00f6ng\u00fcler sona erdi.&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu kodda, &lt;code&gt;donem_tamamlandi&lt;\/code&gt; bayra\u011f\u0131, i\u00e7teki d\u00f6ng\u00fcden \u00e7\u0131k\u0131ld\u0131\u011f\u0131nda &lt;code&gt;True&lt;\/code&gt; yap\u0131l\u0131r ve bu bilgi d\u0131\u015ftaki d\u00f6ng\u00fcye aktar\u0131larak onun da k\u0131r\u0131lmas\u0131n\u0131 sa\u011flar. Bu, i\u00e7 i\u00e7e d\u00f6ng\u00fclerle \u00e7al\u0131\u015f\u0131rken kontrol\u00fc kaybetmemek i\u00e7in etkili bir yoldur.&lt;\/p&gt;\n\n    &lt;p&gt;&lt;code&gt;continue&lt;\/code&gt; ifadesini kullan\u0131rken, bazen okunabilirli\u011fi art\u0131rmak i\u00e7in kod blo\u011funu tersine \u00e7evirmek daha mant\u0131kl\u0131 olabilir. Yani, &lt;code&gt;continue&lt;\/code&gt; ile atlamak yerine, i\u015flenmesi gereken durumu do\u011frudan &lt;code&gt;if&lt;\/code&gt; blo\u011funun i\u00e7ine almak. \u00d6rne\u011fin, tek say\u0131lar\u0131 atlamak yerine, \u00e7ift say\u0131lar\u0131 i\u015flemek i\u00e7in kodu yeniden d\u00fczenleyebilirsiniz:<\/code><\/pre>\n<p>python<br \/>\n    # \u00d6nceki continue \u00f6rne\u011fi:<br \/>\n    # for i in range(1, 11):<br \/>\n    #     if i % 2 != 0:<br \/>\n    #         continue<br \/>\n    #     print(f&#8221;\u00c7ift say\u0131: {i}&#8221;)<\/p>\n<p>    # Daha okunabilir alternatif:<br \/>\n    for i in range(1, 11):<br \/>\n        if i % 2 == 0: # E\u011fer say\u0131 \u00e7ift ise<br \/>\n            print(f&#8221;\u00c7ift say\u0131: {i}&#8221;)<br \/>\n    print(&#8220;D\u00f6ng\u00fc tamamland\u0131.&#8221;)<\/p>\n<pre class=\"language-\"><code>Bu alternatif, &lt;code&gt;continue&lt;\/code&gt; kullanmaktan daha do\u011frudan ve anla\u015f\u0131l\u0131r olabilir. Hangi yakla\u015f\u0131m\u0131n daha iyi oldu\u011fu, kodun karma\u015f\u0131kl\u0131\u011f\u0131na ve ki\u015fisel tercihlere ba\u011fl\u0131d\u0131r. Ancak genel kural, kodu m\u00fcmk\u00fcn oldu\u011funca anla\u015f\u0131l\u0131r tutmakt\u0131r.&lt;\/p&gt;\n\n    &lt;p&gt;&lt;code&gt;pass&lt;\/code&gt; ifadesini ise daha \u00e7ok metotlar\u0131n veya s\u0131n\u0131flar\u0131n iskeletini olu\u015ftururken kullan\u0131r\u0131z. Ancak, bir fonksiyonun veya metotun &lt;code&gt;pass&lt;\/code&gt; ile bitmesi, o fonksiyonun veya metotun hi\u00e7bir i\u015fe yaramad\u0131\u011f\u0131 anlam\u0131na gelmez. Bu, geli\u015ftirme s\u00fcrecinin bir a\u015famas\u0131d\u0131r ve ilerleyen zamanlarda bu k\u0131s\u0131mlar doldurulacakt\u0131r. &lt;code&gt;pass&lt;\/code&gt; kullan\u0131rken, gelecekte ne yap\u0131lmas\u0131 gerekti\u011fini belirten yorumlar eklemek (&lt;code&gt;# TODO: ...&lt;\/code&gt; gibi) iyi bir pratiktir. Bu, kodun bak\u0131m\u0131n\u0131 kolayla\u015ft\u0131r\u0131r ve di\u011fer geli\u015ftiricilere veya gelecekteki kendinize ne yapman\u0131z gerekti\u011fini hat\u0131rlat\u0131r.&lt;\/p&gt;\n\n    &lt;h2&gt;Sonu\u00e7&lt;\/h2&gt;\n\n    &lt;p&gt;&lt;code&gt;break&lt;\/code&gt;, &lt;code&gt;continue&lt;\/code&gt; ve &lt;code&gt;pass&lt;\/code&gt; ifadeleri, Python'da d\u00f6ng\u00fc ve kod ak\u0131\u015f\u0131n\u0131 kontrol etmek i\u00e7in vazge\u00e7ilmez ara\u00e7lard\u0131r. &lt;code&gt;break&lt;\/code&gt;, d\u00f6ng\u00fcden an\u0131nda \u00e7\u0131kman\u0131z\u0131 sa\u011flarken, &lt;code&gt;continue&lt;\/code&gt; mevcut d\u00f6ng\u00fc ad\u0131m\u0131n\u0131 atlay\u0131p bir sonrakine ge\u00e7menize olanak tan\u0131r. &lt;code&gt;pass&lt;\/code&gt; ise, s\u00f6zdizimsel bir gereklilik oldu\u011funda ancak herhangi bir i\u015flem yap\u0131lmad\u0131\u011f\u0131nda kullan\u0131lan bir yer tutucudur. Bu ifadeleri do\u011fru ve yerinde kullanarak, kodunuzu daha verimli, esnek, okunabilir ve y\u00f6netilebilir hale getirebilirsiniz. \u00d6zellikle veri i\u015fleme, kullan\u0131c\u0131 giri\u015fi do\u011frulama ve program ak\u0131\u015f\u0131n\u0131 belirli ko\u015fullara g\u00f6re y\u00f6nlendirme gibi senaryolarda bu ifadelerin g\u00fcc\u00fcnden faydalanmak, Python geli\u015ftirme becerilerinizi \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131racakt\u0131r.&lt;\/p&gt;\n\n    &lt;p&gt;Bu makalede, bu ifadelerin temel kullan\u0131mlar\u0131n\u0131, ger\u00e7ek d\u00fcnya senaryolar\u0131n\u0131 ve ileri d\u00fczey ipu\u00e7lar\u0131n\u0131 ele ald\u0131k. Umuyoruz ki, bu rehber &lt;code&gt;break&lt;\/code&gt;, &lt;code&gt;continue&lt;\/code&gt; ve &lt;code&gt;pass&lt;\/code&gt; ifadelerini Python'da ustaca kullanman\u0131za yard\u0131mc\u0131 olacakt\u0131r.&lt;\/p&gt;\n\n    &lt;h2&gt;S\u0131k\u00e7a Sorulan Sorular (SSS)&lt;\/h2&gt;\n\n    &lt;h3&gt;1. &lt;code&gt;break&lt;\/code&gt; ve &lt;code&gt;return&lt;\/code&gt; aras\u0131ndaki fark nedir?&lt;\/h3&gt;\n    &lt;p&gt;&lt;code&gt;break&lt;\/code&gt; ifadesi sadece d\u00f6ng\u00fcden (&lt;code&gt;for&lt;\/code&gt; veya &lt;code&gt;while&lt;\/code&gt;) \u00e7\u0131kar. Program\u0131n ak\u0131\u015f\u0131 d\u00f6ng\u00fcden sonraki ilk sat\u0131ra devam eder. &lt;code&gt;return&lt;\/code&gt; ifadesi ise bir fonksiyondan veya metottan \u00e7\u0131kar ve bir de\u011fer d\u00f6nd\u00fcrebilir. &lt;code&gt;return&lt;\/code&gt; ifadesiyle kar\u015f\u0131la\u015f\u0131ld\u0131\u011f\u0131nda, fonksiyonun veya metodun \u00e7al\u0131\u015fmas\u0131 tamamen durur ve kontrol\u00fc \u00e7a\u011f\u0131ran yere d\u00f6ner. E\u011fer &lt;code&gt;return&lt;\/code&gt; bir d\u00f6ng\u00fcn\u00fcn i\u00e7indeyse, hem d\u00f6ng\u00fcden hem de fonksiyon\/metottan \u00e7\u0131kar.&lt;\/p&gt;\n\n    &lt;h3&gt;2. &lt;code&gt;continue&lt;\/code&gt; ifadesini bir &lt;code&gt;if&lt;\/code&gt; blo\u011fu olmadan kullanabilir miyim?&lt;\/h3&gt;\n    &lt;p&gt;Hay\u0131r, &lt;code&gt;continue&lt;\/code&gt; ifadesi genellikle bir &lt;code&gt;if&lt;\/code&gt; ko\u015fulu i\u00e7inde kullan\u0131l\u0131r. Tek ba\u015f\u0131na kullan\u0131ld\u0131\u011f\u0131nda, her iterasyonda \u00e7al\u0131\u015f\u0131r ve d\u00f6ng\u00fcn\u00fcn geri kalan kodlar\u0131n\u0131 atlar, bu da genellikle istenen bir davran\u0131\u015f de\u011fildir ve sonsuz d\u00f6ng\u00fclere yol a\u00e7abilir. Bu nedenle, &lt;code&gt;continue&lt;\/code&gt;'nun ne zaman \u00e7al\u0131\u015faca\u011f\u0131n\u0131 belirleyen bir ko\u015ful olmal\u0131d\u0131r.&lt;\/p&gt;\n\n    &lt;h3&gt;3. &lt;code&gt;pass&lt;\/code&gt; ifadesi ne zaman gereklidir?&lt;\/h3&gt;\n    &lt;p&gt;&lt;code&gt;pass&lt;\/code&gt; ifadesi, Python'\u0131n s\u00f6zdizimsel olarak bir blokta bir komut olmas\u0131n\u0131 gerektirdi\u011fi ancak sizin o anda hi\u00e7bir i\u015flem yapmak istemedi\u011finiz durumlarda gereklidir. \u00d6rne\u011fin, hen\u00fcz i\u00e7eri\u011fi tan\u0131mlanmam\u0131\u015f bir fonksiyon, s\u0131n\u0131f veya metot tan\u0131mlarken veya bir &lt;code&gt;if&lt;\/code&gt; blo\u011funun belirli bir dal\u0131nda hi\u00e7bir \u015fey yap\u0131lmas\u0131n\u0131 istemedi\u011finizde kullan\u0131l\u0131r. Olmadan, Python s\u00f6zdizimi hatas\u0131 verir.&lt;\/p&gt;\n\n    &lt;h3&gt;4. \u0130\u00e7 i\u00e7e d\u00f6ng\u00fclerde &lt;code&gt;break&lt;\/code&gt; sadece en i\u00e7teki d\u00f6ng\u00fcden mi \u00e7\u0131kar?&lt;\/h3&gt;\n    &lt;p&gt;Evet, &lt;code&gt;break&lt;\/code&gt; ifadesi sadece i\u00e7inde bulundu\u011fu en i\u00e7teki d\u00f6ng\u00fcden \u00e7\u0131kar. E\u011fer d\u0131\u015ftaki d\u00f6ng\u00fclerden de \u00e7\u0131kmak istiyorsan\u0131z, bayrak de\u011fi\u015fkenleri kullanmak veya kodu fonksiyonlara ay\u0131rmak gibi ek y\u00f6ntemler kullanman\u0131z gerekir.&lt;\/p&gt;\n\n    &lt;h3&gt;5. &lt;code&gt;continue&lt;\/code&gt; ile bir &lt;code&gt;if&lt;\/code&gt; blo\u011funun &lt;code&gt;else&lt;\/code&gt; k\u0131sm\u0131n\u0131 nas\u0131l atlayabilirim?&lt;\/h3&gt;\n    &lt;p&gt;&lt;code&gt;continue&lt;\/code&gt;, mevcut iterasyondaki geri kalan kodlar\u0131 atlar. E\u011fer &lt;code&gt;if&lt;\/code&gt; blo\u011funun &lt;code&gt;else&lt;\/code&gt; k\u0131sm\u0131n\u0131 atlamak istiyorsan\u0131z, &lt;code&gt;continue&lt;\/code&gt;'yu &lt;code&gt;if&lt;\/code&gt; blo\u011funun i\u00e7ine yerle\u015ftirmeniz gerekir. B\u00f6ylece, &lt;code&gt;if&lt;\/code&gt; ko\u015fulu do\u011fru oldu\u011funda &lt;code&gt;continue&lt;\/code&gt; \u00e7al\u0131\u015f\u0131r ve &lt;code&gt;else&lt;\/code&gt; k\u0131sm\u0131na hi\u00e7 ula\u015f\u0131lmaz. E\u011fer &lt;code&gt;else&lt;\/code&gt; k\u0131sm\u0131na ula\u015f\u0131lmamas\u0131 isteniyorsa, &lt;code&gt;continue&lt;\/code&gt;'nun &lt;code&gt;if&lt;\/code&gt; blo\u011funun i\u00e7inde olmas\u0131 gerekir.&lt;\/p&gt;\n\n&lt;\/article&gt;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"&lt;title&gt;Python&#8217;da break, continue ve pass Kullan\u0131m\u0131: D\u00f6ng\u00fc Kontrol\u00fc Rehberi&lt;\/title&gt; &lt;meta name=&quot;description&quot; content=&quot;Python&#8217;da d\u00f6ng\u00fclerin ak\u0131\u015f\u0131n\u0131 kontrol etmeyi \u00f6\u011frenin. break,&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-41453","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Neden D\u00f6ng\u00fc Kontrol \u0130fadelerine \u0130htiya\u00e7 Duyar\u0131z?<\/title>\n<meta name=\"description\" content=\"&lt;title&gt;Python&#039;da break, continue ve pass Kullan\u0131m\u0131: D\u00f6ng\u00fc Kontrol\u00fc Rehberi&lt;\/title&gt; 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