Enum是枚举,用于存储一组命名常量,例如年,产品,月,季等。
Enum常数的默认值从0开始递增。它具有一组固定的常数,可以轻松地遍历。但是,您仍然可以更改开始索引并使用您选择的值对其进行自定义。
在以下示例中,我将自定义值设置为20,而不是默认值0。
using System;
public class Demo {
public enum Vehicle { Car =20, Motorcycle, Bus, Truck }
public static void Main() {
int a = (int)Vehicle.Car;
int b = (int)Vehicle.Motorcycle;
int c = (int)Vehicle.Bus;
int d = (int)Vehicle.Truck;
Console.WriteLine("Car = {0}", a);
Console.WriteLine("Motorcycle = {0}", b);
Console.WriteLine("Bus = {0}", c);
Console.WriteLine("Truck = {0}", d);
}
}输出结果
Car = 20 Motorcycle = 21 Bus = 22 Truck = 23