1 using System.Windows.Forms;
  2 
  3 namespace 计应142 王斌
  4 {
  5     public partial class Form1 : Form
  6     {
  7         public static int Count = 0;
  8         private int t = 60;
  9         public static int right = 0;
 10         public static int fault = 0;
 11 
 12         public Form1()
 13         {
 14             InitializeComponent();
 15         }
 16    
 17         private void button4_Click(object sender, EventArgs e)
 18         {
 19             label2.Text = "/";
 20           // RandomNum();
 21         }
 22 
 23         private void button1_Click(object sender, EventArgs e)
 24         {
 25             label2.Text = "+";
 26            // RandomNum();
 27         }
 28 
 29         private void button2_Click(object sender, EventArgs e)
 30         {
 31             label2.Text = "-";
 32            // RandomNum();
 33         }
 34         private void button3_Click(object sender, EventArgs e)
 35         {
 36             label2.Text = "*";
 37            // RandomNum();
 38         }
 39         private void RandomNum()
 40         {
 41             Random ran = new Random();
 42             int n1, n2;
 43             n1 = ran.Next(1, 11);
 44             n2 = ran.Next(1, 11);
 45             textBox1.Text = n1.ToString();
 46             textBox2.Text = n2.ToString();
 47 
 48             switch (label2.Text)
 49             {
 50                 case "-":
 51                     while (true)
 52                     {
 53                         if (int.Parse(textBox1.Text) >= int.Parse(textBox2.Text))
 54                         {
 55                             break;
 56                         }
 57                         n1 = ran.Next(1, 11);
 58                         n2 = ran.Next(1, 11);
 59                         textBox1.Text = n1.ToString();
 60                         textBox2.Text = n2.ToString();
 61 
 62                     }
 63                     break;
 64 
 65             }
 66             textBox3.Text = "";
 67             Count++;
 68         }
 69         private void button6_Click(object sender, EventArgs e)
 70         {
 71 
 72             textBox3.Enabled = false;
 73             Form2 frm2 = new Form2();
 74             frm2.ShowDialog();
 75           
 76         }
 77         private void textBox3_KeyDown(object sender, KeyEventArgs e)
 78         {          
 79             int m;
 80             if (e.KeyCode == Keys.Enter)
 81             {
 82                 switch (label2.Text)
 83                 {
 84                     case "+":
 85                         m = int.Parse(textBox2.Text) + int.Parse(textBox3.Text);
 86                         break;
 87 
 88                     case "*":
 89                         m = int.Parse(textBox2.Text) * int.Parse(textBox3.Text);
 90                         break;
 91                     default:
 92                         m = int.Parse(textBox2.Text) / int.Parse(textBox3.Text);
 93                         break;
 94                 }
 95                 if (textBox3.Text == Convert.ToString(m))
 96                 {
 97                     right++;
 98                    // RandomNum();
 99                 }
100                 else
101                 {
102                     fault++;
103                    RandomNum();
104                 }
105             }
106         }
107         private void button5_Click(object sender, EventArgs e)
108         {
109             try
110             {
111                 t = int.Parse(textBox4 .Text  );
112                 if (t <= 0)
113                 {
114                     MessageBox.Show("时间不能为负数");
115                     return;
116                 }
117                 label4.Text = t.ToString();
118                 textBox4.Enabled = false;
119             }
120             catch (Exception)
121             {
122                 MessageBox.Show("请输入正确的时间");
123                 return;
124 
125             }
126            // label4.Text = t.ToString();
127            
128             timer1.Enabled = true;
129             timer1.Interval = 1000;
130             timer1.Start();
131             RandomNum();
132         }
133         private void timer1_Tick(object sender, EventArgs e)
134         {
135             if (t <= 0)
136             {
137                 timer1.Enabled = false;
138                 textBox4.Enabled = false;
139                 MessageBox.Show("时间到！！！");
140                 textBox4.Enabled = false;
141               //  txtTime.Enblaed = false;
142                 Form2 frm2 = new Form2();
143                 frm2.ShowDialog();
144             }
145             t = t - 1;
146             label4.Text = t.ToString();
147         }
148 
149         private void Form1_Load(object sender, EventArgs e)
150         {
151 
152         }
153 
154         private void textBox1_TextChanged(object sender, EventArgs e)
155         {
156 
157         }
158 
159         private void textBox3_TextChanged(object sender, EventArgs e)
160         {
161         }
162     }
163 
164 }








 






项目耗时纪录：


（另查找资料另用一小时左右）


个人耗时纪录



PSP2.1
Personal Software Process Stages
耗时（分钟）




 
计划
10




 
  估计任务用时
10




 
开发
180




  


  需求分析


20




 
  设计复审
15




 
  代码规范
10




 
  具体设计
20




 
  具体编码
70




 
  代码复审
15




 


  测试


10




 
报告
30




 
  测试报告
15




 
  计算工作量
5




 
  事后总结
15






又在原基础上增加了时间设置，即用户可以自己定义时间，并且完成了减数不会出现负数，并且用户可以自己定义运算符号。