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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## **變量聲明** 變量類型 變量名1,變量名2, ``` int a,b; ``` ## **var(自動類型) 后面可以跟任何變量類型的值,編譯器會自動識別變量類型** ``` var x=3;//等同 int x=3 //Console.WriteLine(x.getType().name);//int32 var x=3L;;//等同 long x=3 //Console.WriteLine(x.getType().name);//int64 var x=3.0;//等同 float x=3.0 Console.WriteLine(x.getType().name);//Double var x=3.0F; Console.WriteLine(x.getType().name);//Single 即float var x="hello"; Console.WriteLine(x.getType().name);//string ``` ## **變量賦值** ``` int a,b; a=1; b=2; ``` ## **靜態變量(只能在類里)** ``` class Test{ int a,b;//實例變量 static int c=3;//靜態變量(類變量) } ``` ## **局部變量(即類方法中定義的變量)** ``` class Test { static int c = 3; static void Main(string[] args) { for (int i = 0; i <=20; i++) { Console.WriteLine(i.ToString()); } } } ``` ## **全局代碼(文件中直接寫表達式)** >[info]全局代碼示意 ``` Console.WriteLine("Hello, World!"); string name = "馬云"; Console.WriteLine(name); //注意上面直接寫了表達式,則為全局代碼,下面定義的類會被直接忽視不會執行 class Test { static int c = 3; static void Main(string[] args) { for (int i = 0; i <=20; i++) { Console.WriteLine(i.ToString()); } } } ```
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