如何用C#制作一个简单的计算器，有加减乘除，带小数点。如果附带有说明（语句的意思）那最好了，谢谢！

https://bbs.bccn.net/viewthread.php?tid=14383&highlight=%BC%C6%CB%E3

建议看了楼上的那个 最好再下载一个源代码 自己去看看  研究下 对比下 就好了啊

https://bbs.bccn.net/thread-284605-1-1.html   

 这个哥们的代码还不错啊

缘分啊！
我正在在做这个！
我把自己做的一个代码贴出来给你看吧

using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
 
namespace CalcDemo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        int i = 0;
        double x = 0.0;
        double y = 0.0;
        int z = 0;
        int j = 0;
 
        private void IncreaseI()
        {
            if (i%2 == 0)
            {
                x = z;
            }
            else if ( i%2 == 1 )
            {
                y = z;
            }
            i++;
            if (i > 1)
            {
                i = 0;
            }
            textBox1.Text = z.ToString();
        }
 
        private void button10_Click(object sender, EventArgs e)
        {
            z = 0;
            IncreaseI();
        }
 
        private void button5_Click(object sender, EventArgs e)
        {
            z = 1;
            IncreaseI();
        }
 
        private void button7_Click(object sender, EventArgs e)
        {
            z = 2;
            IncreaseI();
        }
 
        private void button9_Click(object sender, EventArgs e)
        {
            z = 3;
            IncreaseI();
        }
 
        private void button4_Click(object sender, EventArgs e)
        {
            z = 4;
            IncreaseI();
        }
 
        private void button6_Click(object sender, EventArgs e)
        {
            z = 5;
            IncreaseI();
        }
 
        private void button8_Click(object sender, EventArgs e)
        {
            z = 6;
            IncreaseI();
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            z = 7;
            IncreaseI();
        }
 
        private void button2_Click(object sender, EventArgs e)
        {
            z = 8;
            IncreaseI();
        }
 
        private void button3_Click(object sender, EventArgs e)
        {
            z = 9;
            IncreaseI();
        }
 
        private void button12_Click(object sender, EventArgs e)
        {
            j = 1;
        }
 
        private void button13_Click(object sender, EventArgs e)
        {
            j = 2;
        }
 
        private void button14_Click(object sender, EventArgs e)
        {
            j = 3;
        }
 
        private void button15_Click(object sender, EventArgs e)
        {
            j = 4;
        }
 
        private void button11_Click(object sender, EventArgs e)
        {
            switch (j)
            {
                case 1:
                    textBox1.Text = Convert.ToString(x + y);
                    break;
                case 2:
                    textBox1.Text = Convert.ToString(x - y);
                    break;
                case 3:
                    textBox1.Text = Convert.ToString(x * y);
                    break;
                case 4:
                    textBox1.Text = Convert.ToString(x / y);
                    break;
                default:
                    break;
            }
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
 
        }
    }
}

非常感谢，可是这个程序好像只能计算一个数字的啊

5楼贴的啥东西啊，昏迷了

我也昏迷了...

新手 ，希望各位指点！！

我，我是在做一个最简单的，个位数的计算机。。
抱歉，我也是只菜鸟。。。