用C#做的一个简单的加减乘除计算器,做着好玩的!!
C#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 WindowsFormsApplication2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void bt_add_Click(object sender, EventArgs e)
{
Double s1 = 0, s2 = 0,result = 0;
if (tb1.Text !="")
{
try
{
s1 = Convert.ToDouble(tb1.Text.ToString().Trim());
}
catch { MessageBox.Show("请输入正确的数字!", "提示"); return; }
}
if (tb2.Text != "")
{
try
{
s2 = Convert.ToDouble(tb2.Text.ToString().Trim());
}
catch { MessageBox.Show("请输入正确的数字!", "提示"); return; }
}
result = s1 + s2;
tb_result.Text = result.ToString();
}
private void bt_subtract_Click(object sender, EventArgs e)
{
Double s1 = 0, s2 = 0, result = 0;
if (tb1.Text != "")
{
try
{
s1 = Convert.ToDouble(tb1.Text.ToString().Trim());
}
catch { MessageBox.Show("请输入正确的数字!", "提示"); return; }
}
if (tb2.Text != "")
{
try
{
s2 = Convert.ToDouble(tb2.Text.ToString().Trim());
}
catch { MessageBox.Show("请输入正确的数字!", "提示"); return; }
}
result = s1 - s2;
tb_result.Text = result.ToString();
}
private void bt_multiply_Click(object sender, EventArgs e)
{
Double s1 = 0, s2 = 0, result = 0;
if (tb1.Text != "")
{
try
{
s1 = Convert.ToDouble(tb1.Text.ToString().Trim());
}
catch { MessageBox.Show("请输入正确的数字!", "提示"); return; }
}
if (tb2.Text != "")
{
try
{
s2 = Convert.ToDouble(tb2.Text.ToString().Trim());
}
catch { MessageBox.Show("请输入正确的数字!", "提示"); return; }
}
result = s1 * s2;
tb_result.Text = result.ToString();
}
private void bt_divide_Click(object sender, EventArgs e)
{
Double s1 = 0, s2 = 0, result = 0;
if (tb1.Text != "")
{
try
{
s1 = Convert.ToDouble(tb1.Text.ToString().Trim());
}
catch { MessageBox.Show("请输入正确的数字!", "提示"); return; }
}
if (tb2.Text != "")
{
try
{
s2 = Convert.ToDouble(tb2.Text.ToString().Trim());
}
catch { MessageBox.Show("请输入正确的数字!", "提示"); return; }
}
if (s2 == 0.0) { MessageBox.Show("被除数不能为0!", "提示"); return; }
result = s1 / s2;
tb_result.Text = result.ToString();
}
}
}
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用C#做的一个简单的加减乘除计算器,做着好玩的
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