作业四: 结对编程项目---四则运算 1

这次的作业对我来说难度很大,所以必须要借助于网上的知识来进行补充,通过上网查资料,结合上课老师所讲的内用,还有老师所给-出的一些经典的范例,最重要的是结合我自己原有的知识来进行补充,我终于还是做出了一些成品,但是我最初完成的不能实现,所以这让我困扰了好久,但是,我经过看到了网上的一些源代码,认真学习了之后,才借鉴了过来,要理解才能成为自己的东西!但是,目前只能实现整数的四则运算!

 

 

 

 

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

namespace 计算器

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        public string num;

        public int flag;//用于判断输入的操作符

        public double num1, num2;

        private void num0_button_Click(object sender, EventArgs e)

        {

            num = num + "0";

            num2 = Convert.ToDouble(num);

            textBox.Text = num;

        }

        private void num1_button_Click(object sender, EventArgs e)//重点算法1

        {

            if (textBox.Text == "0")

            {

                num = "1";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "1";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void num2_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text == "0")

            {

                num = "2";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "2";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void num3_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text == "0")

            {

                num = "3";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "3";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void num4_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text == "0")

            {

                num = "4";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "4";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void num5_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text == "0")

            {

                num = "5";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "5";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void num6_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text == "0")

            {

                num = "6";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "6";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void num7_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text == "0")

            {

                num = "7";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "7";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void num8_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text == "0")

            {

                num = "8";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "8";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void num9_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text == "0")

            {

                num = "9";

                textBox.Text = Convert.ToString(num);

            }

            else

            {

                num = num + "9";

                num2 = Convert.ToDouble(num);

                textBox.Text = num;

            }

        }

        private void add_button_Click(object sender, EventArgs e)//重点算法2

        {

            if (textBox.Text.Length > 0)

            {

                num1 = Convert.ToDouble(textBox .Text);

                num = "";

                flag = 1;

                textBox.Text = "";

                textBox.Focus();

            }

        }

        private void dev_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text.Length > 0)

            {

                num1 = Convert.ToDouble(textBox.Text);

                num = "";

                flag = 2;

                textBox.Text = "";

                textBox.Focus();

            }

        }

        private void mul_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text.Length > 0)

            {

                num1 = Convert.ToDouble(textBox.Text);

                num = "";

                flag = 3;

                textBox.Text = "";

                textBox.Focus();

            }

        }

        private void chu_button_Click(object sender, EventArgs e)

        {

            if (textBox.Text.Length > 0)

            {

                num1 = Convert.ToDouble(textBox.Text);

                num = "";

                flag = 4;

               // textBox.Text = "";

                textBox.Focus();

            }

        }

        private void equ_button_Click(object sender, EventArgs e)

        {

            switch (flag)

            {

                case 1:

                    textBox.Text = Convert.ToString(num1+Convert .ToDouble(num));//重点算法3

                    num2 = Convert.ToDouble(textBox .Text);

                    break;

                case 2:

                    textBox.Text = Convert.ToString(num1 - Convert.ToDouble(num));

                    num2 = Convert.ToDouble(textBox.Text);

                    break;

                case 3:

                    textBox.Text = Convert.ToString(num1 * Convert.ToDouble(num));

                    num2 = Convert.ToDouble(textBox.Text);

                    break;

                case 4:

                    textBox.Text = Convert.ToString(num1 / Convert.ToDouble(num));

                    num2 = Convert.ToDouble(textBox.Text);

                    break;

            }

        }

        private void re_button_Click(object sender, EventArgs e)

        {

            num = "";

            textBox.Text = "0";

        }

    }

}

 

 
posted @ 2016-04-06 16:56  青盲世界  阅读(130)  评论(0编辑  收藏  举报