枚举的使用

 1    class Class1
 2     {
 3 
 4         static void Main(string[] args)
 5         {
 6             //为true进入
 7             Console.Write("if in" + "\n");
 8             Console.Write((int)MeiJu.num1 + "\n");
 9             Console.Write((int)MeiJu.num3 + "\n");
10 
11             //由值获取内容
12             int i = 4;
13             string name1 = Enum.Parse(typeof(MeiJu), i.ToString()).ToString();
14             Console.Write(name1 + "\n");
15 
16             //由内容获取值
17             string name2 = "小张";
18             int j = Convert.ToInt32(Enum.Parse(typeof(MeiJu), name2));
19             Console.Write("这是小张对应的" + j + "\n");
20 
21             int sum = 3;
22             if (sum == Convert.ToInt32(MeiJu.num1))
23             {
24                 Console.Write(MeiJu.num1);
25             }
26             else if (sum == Convert.ToInt32(MeiJu.num2))
27             {
28                 Console.Write(MeiJu.num2);
29             }
30             else if (sum == Convert.ToInt32(MeiJu.num3))
31             {
32                 Console.Write(MeiJu.num3);
33             }
34 
35         }
36         enum MeiJu
37         {  
38             num1 = 1,                         
39             num2,
40             num3,
41             老王 = 4,
42             小张 = 5
43         }
44     }