C#设计一个简单的计算器，实现两个数的加，减，乘，除，求幂等计算，运行效果如下图所示：

1.题目要求如下：

C#设计一个简单的计算器，实现两个数的加，减，乘，除，求幂等计算，运行效果如下图所示：

 2.这边需要用到的是VS2019下的C#Windows窗体

3.来吧，展示：

using System;
using System.Windows.Forms;

namespace Calculator
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
MessageBox.Show("欢迎使用小关牌计算器！");
}
private void button1_Click(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
double result = x + y;
label4.Text = textBox1.Text + "+" + textBox2.Text + "的值为" + result;
}
private void button3_Click(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
double result = x / y;
label4.Text = textBox1.Text + "/" + textBox2.Text + "的值为" + result;
}

private void textBox1_TextChanged(object sender, EventArgs e)
{
}

private void label2_Click(object sender, EventArgs e)
{
MessageBox.Show("目前不支持其他运算!");
}
private void label3_Click(object sender, EventArgs e)
{
}
private void textBox3_TextChanged(object sender, EventArgs e)
{
}
private void textBox2_TextChanged(object sender, EventArgs e)
{
}
private void button1_Click_1(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
double result = x - y;
label4.Text = textBox1.Text + "-" + textBox2.Text + "的值为" + result;
}
private void button2_Click(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
double result = x * y;
label4.Text = textBox1.Text + "*" + textBox2.Text + "的值为" + result;
}
private void button4_Click(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
double result = Math.Pow(x, y);
label4.Text = textBox1.Text + "的" + textBox2.Text + "次方为" + result;
}
private void button5_Click(object sender, EventArgs e)
{
//归零
textBox1.Text = "";
textBox2.Text = "";
label4.Text = "";
}
}
}

此为小关计算器2.0简明版

4.来看看运行结果：ctrl+f5

 这边自由发挥加上了弹窗提示的效果

 这边演示的为9的9次方结果

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