Go Programlama Diline Giri\u015f: 2. G\u00fcn<\/p>\n
Merhaba! Go programlama dilini \u00f6\u011frenmeye devam ediyoruz. D\u00fcnk\u00fc yaz\u0131m\u0131zda temel kavramlar\u0131 ele alm\u0131\u015ft\u0131k. Bug\u00fcn ise de\u011fi\u015fkenler, veri tipleri ve operat\u00f6rler \u00fczerine yo\u011funla\u015faca\u011f\u0131z.<\/p>\n
Go’da bir de\u011fi\u015fken tan\u0131mlamak i\u00e7in `var` anahtar s\u00f6zc\u00fc\u011f\u00fcn\u00fc kullan\u0131yoruz. \u00d6rne\u011fin, `var myVariable int` ifadesi, `myVariable` ad\u0131nda bir de\u011fi\u015fken tan\u0131mlar ve bu de\u011fi\u015fkene yaln\u0131zca tam say\u0131lar atanabilir.<\/p>\n
“`go
\nvar myVariable int
\nmyVariable = 10
\n“`<\/p>\n
Go’da veri tipleri, de\u011fi\u015fkenlerin hangi t\u00fcr verileri tutabilece\u011fini belirler. Baz\u0131 yayg\u0131n veri tipleri \u015funlard\u0131r:<\/p>\n
* **int:** Tam say\u0131lar i\u00e7in kullan\u0131l\u0131r.
\n* **float64:** Ondal\u0131kl\u0131 say\u0131lar i\u00e7in kullan\u0131l\u0131r.
\n* **string:** Metin verileri i\u00e7in kullan\u0131l\u0131r.
\n* **bool:** Do\u011fru veya yanl\u0131\u015f de\u011ferleri i\u00e7in kullan\u0131l\u0131r.<\/p>\n
Bir de\u011fi\u015fkeni tan\u0131mlama s\u0131ras\u0131nda veri tipini belirtmezsek, Go otomatik olarak de\u011fi\u015fkenin veri tipini \u00e7\u0131kar\u0131r. \u00d6rne\u011fin:<\/p>\n
“`go
\nmyVariable := 10
\n“`<\/p>\n
Bu kodda, `myVariable` de\u011fi\u015fkeni `int` tipi olarak tan\u0131mlan\u0131r. Bu \u00f6zelli\u011fe **otomatik t\u00fcr \u00e7\u0131karma** denir.<\/p>\n
Go programlama dilinde, de\u011fi\u015fkenler \u00fczerinde i\u015flem yapmak i\u00e7in operat\u00f6rler kullan\u0131l\u0131r. Baz\u0131 yayg\u0131n operat\u00f6rler \u015funlard\u0131r:<\/p>\n
* **Aritmetik Operat\u00f6rler:** +, -, *, \/, %, ++, —
\n* **Kar\u015f\u0131la\u015ft\u0131rma Operat\u00f6rleri:** ==, !=, >, <, >=, <=\n* **Mant\u0131ksal Operat\u00f6rler:** &&, ||, !\n\n\n\n
\u00d6rne\u011fin, `myVariable + 5` ifadesi, `myVariable` de\u011fi\u015fkenine 5 ekler.<\/p>\n
Go’da farkl\u0131 veri tipleri aras\u0131ndaki d\u00f6n\u00fc\u015ft\u00fcrme, baz\u0131 durumlarda gerekli olabilir. \u00d6rne\u011fin, bir `int` tipindeki de\u011fi\u015fkeni bir `string` tipindeki de\u011fi\u015fkene d\u00f6n\u00fc\u015ft\u00fcrmek i\u00e7in `strconv.Itoa()` fonksiyonu kullan\u0131labilir.<\/p>\n
“`go
\nimport “strconv”<\/p>\n
myInt := 10
\nmyString := strconv.Itoa(myInt)
\n“`<\/p>\n
Bu kodda, `myInt` de\u011fi\u015fkeni `strconv.Itoa()` fonksiyonu kullan\u0131larak bir `string` tipindeki `myString` de\u011fi\u015fkenine d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr.<\/p>\n
* Go’da de\u011fi\u015fken isimleri b\u00fcy\u00fck harfle ba\u015flamal\u0131d\u0131r. \u00d6rne\u011fin, `myVariable` yerine `MyVariable` kullan\u0131lmal\u0131d\u0131r.
\n* De\u011fi\u015fken isimleri anlaml\u0131 ve a\u00e7\u0131klay\u0131c\u0131 olmal\u0131d\u0131r.
\n* De\u011fi\u015fkenleri kullanmadan \u00f6nce mutlaka tan\u0131mlamal\u0131s\u0131n\u0131z.<\/p>\n
Bu yaz\u0131m\u0131zda, Go’da de\u011fi\u015fkenleri ve veri tiplerini nas\u0131l tan\u0131mlayaca\u011f\u0131m\u0131z\u0131 ve operat\u00f6rleri nas\u0131l kullanaca\u011f\u0131m\u0131z\u0131 \u00f6\u011frendik. De\u011fi\u015fken t\u00fcr d\u00f6n\u00fc\u015ft\u00fcrme ve baz\u0131 ipu\u00e7lar\u0131n\u0131 da ele ald\u0131k. Bir sonraki yaz\u0131m\u0131zda Go’da ko\u015fullu ifadeler ve d\u00f6ng\u00fcler hakk\u0131nda bilgi verece\u011fiz.<\/p>\n
Go programlama dili \u00f6\u011frenmeye devam edin ve herhangi bir sorunuz varsa yorum b\u00f6l\u00fcm\u00fcnde sormaktan \u00e7ekinmeyin.<\/p>\n