C#中的var关键字
C＃var关键字
在C＃中，var是关键字，用于声明隐式类型变量，该变量根据初始化值指定变量的类型。
语法：
var variable_name = value;
C＃代码演示var关键字示例
using System;
using System.Text;
namespace Test
{
class Program
{
static void Main(string[] args)
{
var a = 10;
var b = 10.23;
var c = 10.23f;
var d = 10.23m;
var e = 'X';
var f = "Hello";
Console.WriteLine("value of a {0}, type {1}", a, a.GetType());
Console.WriteLine("value of b {0}, type {1}", b, b.GetType());
Console.WriteLine("value of c {0}, type {1}", c, c.GetType());
Console.WriteLine("value of d {0}, type {1}", d, d.GetType());
Console.WriteLine("value of e {0}, type {1}", e, e.GetType());
Console.WriteLine("value of f {0}, type {1}", f, f.GetType());
//按ENTER退出
Console.ReadLine();
}
}
}输出结果
value of a 10, type System.Int32 value of b 10.23, type System.Double value of c 10.23, type System.Single value of d 10.23, type System.Decimal value of e X, type System.Char value of f Hello, type System.String