这是大学时候写的计算器，聊以慰藉曾经的青春。
代码如下，有需要可以参考下：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace jsq
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void 清空ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.textBox1.Text = "";
this.comboBox1.Text = "";
this.textBox2.Text = "";
this.textBox3.Text = "";
this.label1.Text = "";
}
private void button1_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "" || this.textBox2.Text == "")
{
MessageBox.Show("你的输入有误！");
}
else
{
string i = this.comboBox1.SelectedItem.ToString();
switch (i)
{
case "+": double a = double.Parse(this.textBox1.Text);
double b = double.Parse(this.textBox2.Text);
double c = a + b;
this.textBox3.Text = c.ToString();
break;
case "-": a = double.Parse(this.textBox1.Text);
b = double.Parse(this.textBox2.Text);
c = a - b;
this.textBox3.Text = c.ToString();
break;
case "*": a = double.Parse(this.textBox1.Text);
b = double.Parse(this.textBox2.Text);
c = a * b;
this.textBox3.Text = c.ToString();
break;
case "/": a = double.Parse(this.textBox1.Text);
b = double.Parse(this.textBox2.Text);
c = a / b;
this.textBox3.Text = c.ToString();
break;
}
}
this.label2.Text = " " + this.textBox1.Text + this.comboBox1.Text + this.textBox2.Text + "=" + this.textBox3.Text;
}
private void button2_Click(object sender, EventArgs e)
{
this.textBox1.Text = "";
this.comboBox1.Text = "";
this.textBox2.Text = "";
this.textBox3.Text = "";
this.label1.Text = "";
}
private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.Dispose();
}
private void button3_Click(object sender, EventArgs e)
{
this.Dispose();
}
private void 帮助ToolStripMenuItem_Click(object sender, EventArgs e)
{
MessageBox.Show(" 制作：黑色雪 \n\n 时间：7月24日 ");
}
}
}
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