四则运算扩展

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace 第三次作业
{
public partial class Form1 : Form
{
public static int Count, right,z;
public int t = 60;
public static char a;
public static int i = 1, j = 10;

public Form1()
{
InitializeComponent();
}

private void jisuan()
{
Random ran = new Random();
int n1, n2;
n1 = ran.Next(i, j);
n2 = ran.Next(i, j);
textBox6.Text = n1.ToString();
textBox7.Text = n2.ToString();
textBox8.Text = "";

}
private void jianfa()
{
Random ran = new Random();
int n1, n2;
n1 = ran.Next(i, j);
n2 = ran.Next(n1, j);
textBox6.Text = n2.ToString();
textBox7.Text = n1.ToString();
textBox8.Text = "";

}

private void timer1_Tick(object sender, EventArgs e)
{
if (t == 0)
{
timer1.Enabled = false;
label12.Text = t.ToString();
textBox8.Enabled = false;
MessageBox.Show("时间到了！");


}
t = t - 1;
label12.Text = t.ToString();

}

private void button1_Click(object sender, EventArgs e)
{
if (textBox1.Text == "")
{
textBox1.Text = "+";
}
if (textBox1.Text == "-")
jianfa();
else
jisuan();
if (textBox12.Text == "")
{
timer1.Enabled = true;
timer1.Interval = 1000;
timer1.Start();
}
else
{
z = int.Parse(textBox12.Text);
}

}

private void textBox2_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
t = int.Parse(textBox2.Text);

}

private void button2_Click(object sender, EventArgs e)
{
this.Close();
}

private void textBox3_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
i = int.Parse(textBox3.Text);

}

private void textBox4_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
j = int.Parse(textBox4.Text);
}

private void panduan(int sd)
{
try
{
int s = int.Parse(textBox8.Text);
if (s == sd)
{
right++;
Count++;

}

else
Count++;
}
catch (Exception ee)
{
MessageBox.Show(ee.Message);
}
if (z == Count)
{
textBox8.Enabled = false;
MessageBox.Show("计算结束！");
}

textBox9.Text = Count.ToString();
textBox10.Text = right.ToString();
textBox11.Text = ((right / (double)Count) * 100).ToString() + "%";
if (textBox1.Text == "-")
jianfa();
else
jisuan();

}

private void textBox8_KeyDown(object sender, KeyEventArgs e)
{
int sr;
if (textBox1.Text == "+")
{
sr = int.Parse(textBox6.Text) + int.Parse(textBox7.Text);
if (e.KeyCode == Keys.Enter)
{
panduan(sr);
}

}

else if (textBox1.Text == "-")
{

sr = int.Parse(textBox6.Text) - int.Parse(textBox7.Text);
if (e.KeyCode == Keys.Enter)
{
panduan(sr);
}

}
if (textBox1.Text == "*")
{
sr = int.Parse(textBox6.Text) * int.Parse(textBox7.Text);
if (e.KeyCode == Keys.Enter)
{
panduan(sr);
}

}

}
}
}

运算图片如下：

结对编程合作人：和彦鹏

需求分析：

运用窗体应用程序，用textBox控件来接收用户的输入，来实现用户的不同需求，来实现用户最大的利益化。

由于除法的设计比较有难度，经过几次努力仍没用按照老师的要求做出来，证明，自身努力不够，知识有限。所以，以后我会更加努力学习。望老师理解。

和和彦鹏同学结对编程以后，我感觉到了我自身的不足。还有许多知识需要学习。例如：keyDown事件，等专业知识。

四则运算扩展

原文：http://www.cnblogs.com/herengdong666/p/4890205.html