C#控制台计算器代码
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 Caculator
{
public partial class Form1 : Form
{
public string ok1;
public int OperationType;
public double okl1, okl2;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e) //退格
{
if (textBox1.Text == "" || textBox1.Text == "0")
{
textBox1.Text = "";
}
else
{
okl1 = Convert.ToDouble(textBox1.Text);
ok1 = Convert.ToString((okl1 - okl1 % 10) / 10);
textBox1.Text = ok1;
}
}
private void button2_Click(object sender, EventArgs e) //清空按钮
{
ok1 = "";
textBox1.Text = "0";
textBox1.Focus();
}
private void button9_Click(object sender, EventArgs e) //1按钮
{
if (textBox1.Text == "0")
{
ok1 = "1";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "1";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button10_Click(object sender, EventArgs e) //2
{
if (textBox1.Text == "0")
{
ok1 = "2";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "2";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button11_Click(object sender, EventArgs e) //3
{
if (textBox1.Text == "0")
{
ok1 = "3";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "3";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button6_Click(object sender, EventArgs e) //4
{
if (textBox1.Text == "0")
{
ok1 = "4";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "4";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button5_Click(object sender, EventArgs e) //5
{
if (textBox1.Text == "0")
{
ok1 = "5";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "5";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button8_Click(object sender, EventArgs e) //6
{
if (textBox1.Text == "0")
{
ok1 = "6";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "6";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button3_Click(object sender, EventArgs e) //7
{
if (textBox1.Text == "0")
{
ok1 = "7";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "7";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button4_Click(object sender, EventArgs e) //8
{
if (textBox1.Text == "0")
{
ok1 = "8";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "8";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button7_Click(object sender, EventArgs e) //9
{
if (textBox1.Text == "0")
{
ok1 = "9";
textBox1.Text = Convert.ToString(ok1);
}
else
{
ok1 = ok1 + "9";
okl2 = Convert.ToDouble(ok1);
textBox1.Text = ok1;
}
}
private void button15_Click(object sender, EventArgs e) //0
{
ok1 = ok1 + "0";
okl2 = Convert.ToDouble(ok1);
this.textBox1.Text=ok1;
}
private void button17_Click(object sender, EventArgs e) //.
{
try
{
ok1 = Convert.ToString(ok1 + ".");
textBox1.Text = Convert.ToString(ok1 + "");
}
catch
{ }
}
private void button16_Click(object sender, EventArgs e) // +/- 正钮
{
okl1 = Convert.ToDouble(textBox1.Text);
textBox1.Text = Convert.ToString(0 - okl1);
}
private void button18_Click(object sender, EventArgs e) // -
{
if (textBox1.TextLength > 0)
{
okl1 = Convert.ToDouble(textBox1.Text);
ok1 = "";
OperationType = 2;
textBox1.Text = "";
textBox1.Focus();
}
}
private void button14_Click(object sender, EventArgs e) // +
{
if (textBox1.TextLength > 0)
{
okl1 = Convert.ToDouble(textBox1.Text);
ok1 = "";
OperationType = 1;
textBox1.Text = "";
textBox1.Focus();
}
}
private void button13_Click(object sender, EventArgs e) //*
{
if (textBox1.TextLength > 0)
{
okl1 = Convert.ToDouble(textBox1.Text);
ok1 = "";
OperationType = 3;
textBox1.Text = "";
textBox1.Focus();
}
}
private void button12_Click(object sender, EventArgs e) // /
{
if (textBox1.TextLength > 0)
{
okl1 = Convert.ToDouble(textBox1.Text);
ok1 = "";
OperationType = 4;
textBox1.Text = "";
textBox1.Focus();
}
}
private void button22_Click(object sender, EventArgs e) //=
{
switch (OperationType)
{
case 1:
textBox1.Text = Convert.ToString(okl1 + Convert.ToDouble(ok1));
okl2 = Convert.ToDouble(textBox1.Text);
break;
case 2:
textBox1.Text = Convert.ToString(okl1 - Convert.ToDouble(ok1));
okl2 = Convert.ToDouble(textBox1.Text);
break;
case 3:
textBox1.Text = Convert.ToString(okl1 * Convert.ToDouble(ok1));
okl2 = Convert.ToDouble(textBox1.Text);
break;
case 4:
textBox1.Text = Convert.ToString(okl1 / Convert.ToDouble(ok1));
okl2 = Convert.ToDouble(textBox1.Text);
break;
}
ok1 = "";
okl1 = Convert.ToDouble(textBox1.Text);
}
private void button21_Click(object sender, EventArgs e) // /% 倒数
{
if (Convert.ToDouble(textBox1.Text) == 0)
{
this.textBox1.Text = "error";
}
else
{
okl2 = Convert.ToDouble(textBox1.Text);
ok1 = "";
textBox1.Text = Convert.ToString(1 / okl2);
}
}
private void button20_Click(object sender, EventArgs e) //%
{
ok1 = Convert.ToString(Convert.ToDouble(textBox1.Text) / 100);
textBox1.Text = ok1;
ok1 = "";
}
private void button19_Click(object sender, EventArgs e) //sqrt求平方根
{
if (Convert.ToDouble(textBox1.Text) < 0)
{
this.textBox1.Text = "error";
}
else
{
okl2 = Convert.ToDouble(textBox1.Text);
ok1 = "";
textBox1.Text = Convert.ToString(System.Math.Sqrt(okl2));
textBox1.Focus();
}
}
private void button24_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void button23_Click(object sender, EventArgs e)
{
Help.ShowHelp(this, "C:\\WINDOWS\\system32\\calc.exe");
}
}
}
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