C#设计一个简单的计算器，实现两个数的加减乘除和求幂等计算

首先设计如下界面：

编写如下代码：

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 aa

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button5_Click(object sender, EventArgs e)

        {

            double  x = Convert.ToDouble(textBox1 .Text );

            double  y = Convert.ToDouble (textBox2 .Text );

            double  result=Math.Pow (x,y);

            label3.Text = textBox1 .Text +“的”+textBox2 .Text +“次方为”+result ;

        }

        private void button1_Click(object sender, EventArgs e)

        {

            double x = Convert.ToDouble(textBox1.Text);

            double y = Convert.ToDouble(textBox2.Text);

            double result = x+y;

            label3.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;

            label3.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;

            label3.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 = x /y;

            label3.Text = textBox1.Text + “/” + textBox2.Text + “的值为” + result;

        }

    }

}

运行结果: