C#异常处理匹配顺序

时间：2014-09-17 23:15:42 阅读：364 评论：0 收藏：0 [点我收藏+]

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使用try和catch并finally关键字，再次主要记录一下有些比较特别的异常处理。

示例：

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 
 7 namespace ExceptionTest
 8 {
 9     class Program
10     {
11         static void Main()
12         {
13             MyClass my = new MyClass();
14             try
15             {
16                 my.A();
17             }
18             catch(DivideByZeroException e)
19             {
20                 Console.WriteLine("catch in Main");
21             }
22             finally
23             {
24                 Console.WriteLine("finally catch on Main");
25             }
26 
27             Console.ReadKey();
28         }
29     }
30     class MyClass
31     {
32         public void A()
33         { 
34             try
35             { 
36                 B(); 
37             }
38             catch(System.NullReferenceException)
39             {
40                 Console.WriteLine("catch ex in A()"); 
41             }
42             finally
43             {
44                 Console.WriteLine("finally catch in A()");
45             }
46         }
47         public void B()
48         {
49             int x = 10;
50             int y = 0;
51             try
52             {
53                 x /= y;
54             }
55             catch(System.IndexOutOfRangeException)
56             {
57                 Console.WriteLine("catch in B()");
58             }
59             finally
60             {
61                 Console.WriteLine("finally in B()");
62             }
63         }
64     }
65 }