using System;
using System.Collections.Generic;
using https://www.doczj.com/doc/ae17012915.html,ponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace 计算器
{
public partial class Form1 : Form
{
int tem1, tem2;
int rule;
int result;
public Form1()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void label1_Click(object sender, EventArgs e)
{
}
//数字键
private void button7_Click(object sender, EventArgs e)
{
int num7 = 7;
tbx1.Text = tbx1.Text + num7;
}
private void button15_Click(object sender, EventArgs e)
{
if(tbx1.Text.Length!=0)
{
tbx1.Text = tbx1.Text.Substring(0, tbx1.Text.Length-1);
}
}
private void btn1_Click(object sender, EventArgs e)
{
int num1 = 1;
tbx1.Text = tbx1.Text + num1;
}
private void btn2_Click(object sender, EventArgs e)
{
int num2 = 2;
tbx1.Text = tbx1.Text + num2;
}
private void btn3_Click(object sender, EventArgs e)
{
int num3 = 3;
tbx1.Text = tbx1.Text + num3;
}
private void btn4_Click(object sender, EventArgs e)
{
int num4 = 4;
tbx1.Text = tbx1.Text + num4;
}
private void btn5_Click(object sender, EventArgs e)
{
int num5 = 5;
tbx1.Text = tbx1.Text + num5;
}
private void btn6_Click(object sender, EventArgs e)
{
int num6 = 6;
tbx1.Text = tbx1.Text + num6;
}
private void btn8_Click(object sender, EventArgs e)
{
int num8 = 8;
tbx1.Text = tbx1.Text + num8;
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void btn9_Click(object sender, EventArgs e)
{
int num9 = 9;
tbx1.Text = tbx1.Text + num9;
}
private void btn10_Click(object sender, EventArgs e)
{
tem1 = int.Parse(tbx1.Text);
tbx1.Text = tbx1.Text + "+ ";
rule = 1;
}
private void btn11_Click(object sender, EventArgs e)
{
tem1 = int.Parse(tbx1.Text);
tbx1.Text = tbx1.Text + "- ";
rule = 2;
}
private void btn12_Click(object sender, EventArgs e)
{
tem1 = int.Parse(tbx1.Text);
tbx1.Text = tbx1.Text + "* ";
rule = 3;
}
private voi
d btn13_Click(object sender, EventArgs e)
{
tem1 = int.Parse(tbx1.Text);
tbx1.Text = tbx1.Text + "/ ";
rule = 4;
}
private void btn14_Click(object sender, EventArgs e)
{
int start = https://www.doczj.com/doc/ae17012915.html,stIndexOf(" ");
string tem = tbx1.Text.Substring(start);
tem2 = int.Parse(tem);
if(rule==1)
{
result = tem1 + tem2;
}
else if (rule == 2)
{
result = tem1 - tem2;
}
else if (rule == 3)
{
result = tem1 * tem2;
}
else if(rule == 4)
{
result = tem1 / tem2;
}
tbx2.Text =result.ToString();
}
private void button1_Click(object sender, EventArgs e)
{
tbx1.Text = "";
tbx2.Text = "";
}
}
}