C#:switch语句中运行完case后,必须要有break。
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5
6 namespace SwitchTest
7 {
8 class Program
9 {
10 static void Main(string[] args)
11 {
12 int v = 2;
13 switch (v)
14 {
15 case 3: Console.WriteLine("v=3");
16 break;
17 case 2: Console.WriteLine("v=2");
18 break;
19 case 4: Console.WriteLine("v=4");
20 break;
21 }
22 }
23 }
24 }
C/C++中switch语句可以不需要
1 int v = 2;
2 switch (v)
3 {
4 case 3: Console.WriteLine("v=3");
5 break;
6 case 2: Console.WriteLine("v=2");
7
8 case 4: Console.WriteLine("v=4");
9 break;
10 }