C#完成 使用异步线程定时更新窗体标签内容，并对标签内容进行求和显示

这是我在面试过程中遇到的一个小测试，很可惜，当天未能圆满完成，虽然第二天经过实际测试已经ok 了，但学无止境，继续努力吧，特将此代码贴在这里，供以后学习使用；

 1 namespace mytest
 2 {
 3     public partial class form1 : form
 4     {
 5         public form1()
 6         {
 7             initializecomponent();
 8         }
 9 
10         private void button1_click(object sender, eventargs e)
11         {
12             timer1.interval = 200;
13             timer1.enabled = true;
14 
15         }
16 
17         public delegate void mydelegate( );
18         public mydelegate myway;
19         public mydelegate myway2;
20         private void check(object obj)
21         {
22             myway();
23             
24         }
25         private void check2(object obj)
26         {
27             myway2();
28 
29         }
30         private void add1( )
31         {
32            
33                 int i = convert.toint32(label1.text);
34                 i++;
35                 if (!this.ishandlecreated || this.isdisposed) return;
36                 if (invokerequired)
37                 {
38                     this.invoke((methodinvoker)delegate
39                     {
40                         
41                         label1.text = i.tostring();
42                         
43                     });
44                 }
45                 else
46                 {
47 
48                 }
49                                              
50         }
51 
52         private void add2()
53         {
54                 
55                 int i = convert.toint32(label2.text);
56                 i++;
57                 if (!this.ishandlecreated || this.isdisposed) return;
58                 if (invokerequired)
59                 {
60                     this.invoke((methodinvoker)delegate
61                     {
62                         
63                         label2.text = i.tostring();
64                    
65                         int j = convert.toint32(label1.text);
66                         j = j + i;
67                         label3.text = j.tostring();
68 
69                     });
70                 }
71                 else
72                 {
73 
74                 }
75                
76         }
77 
78 
79 
80 
81         private void form1_load(object sender, eventargs e)
82         {
83             myway += new mydelegate(add1);
84             myway2 += new mydelegate(add2);
85         }
86 
87        
88 
89         private void timer1_tick(object sender, eventargs e)
90         {
91 
92 
93            
94             threadpool.queueuserworkitem(new waitcallback(check), null);//执行线程池
95             threadpool.queueuserworkitem(new waitcallback(check2), null);//执行线程池
96         }
97     }
98 }

 

 

窗体界面如下: