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标题:求教各位大神如何在这个计算器上实现连续加减
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Aaron25515
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求教各位大神如何在这个计算器上实现连续加减
using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;


namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        float a = 0;
        double r = 0;
        int smybol = 0;
        int i=-1;
        string s;
            
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text +"1";
        }

        private void num2_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text +"2";
        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "4";
        }

        private void button2_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "5";
        }

        private void num3_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "3";
        }

        private void num6_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "6";
        }

        private void num7_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "7";
        }

        private void num8_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "8";
        }

        private void num9_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "9";
        }

        private void num0_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "0";
        }

        private void button1_Click_2(object sender, EventArgs e)
        {
            textBox1.Text =textBox1.Text+ ".";
        }

        private void button1_Click_3(object sender, EventArgs e)
        {
            i++;
            a = float.Parse(this.textBox1.Text);

            this.textBox1.Text = string.Empty;

            smybol = 1;
        }

        private void but_ch_Click(object sender, EventArgs e)
        {
            a = float.Parse(this.textBox1.Text);

            this.textBox1.Text = string.Empty;
            smybol = 4;
        }

        private void but_chh_Click(object sender, EventArgs e)
        {
            a = float.Parse(this.textBox1.Text);

            this.textBox1.Text = string.Empty;
            smybol = 3;
        }

       private void num2_MouseDown(object sender, MouseEventArgs e)
        {

        }

        private void but_jah_MouseClick(object sender, MouseEventArgs e)
        {
           
        }

        private void dh_Click(object sender, EventArgs e)
        {
            float b = float.Parse(this.textBox1.Text);
            float c = 0;
            //float g = i - b;
            //float h = o * b;
            //float j = p / b;
            //

            switch (smybol)//判断smybol为何种符号(+=1 -=2 *=3 /=4)
                          
            {
                case 1://如果smybol为一
                    c = a + b;
                    break;
                case 2:
                    c = a - b;
                    break;
                case 3:
                    c=a*b;
                    break;
                case 4:
                    c = a / b; 
               
                 break;
                     

                default:
                    break;
            }
            
            this.textBox1.Text = c.ToString();//这个文本框等于C输出
            
            //this.textBox1.Text = g.ToString();
            //this.textBox1.Text = h.ToString();
            //this.textBox1.Text = j.ToString();
        }

        private void but_jh_Click(object sender, EventArgs e)
        {
            a = float.Parse(this.textBox1.Text);

            this.textBox1.Text = string.Empty;

            smybol = 2;
        }

        private void pf_Click(object sender, EventArgs e)
        {
            r = Convert.ToDouble(this.textBox1.Text);

            this.textBox1.Text = string.Empty;

            
                    this.textBox1.Text = (r * r).ToString();

                  
                  
        }

      
    }
}
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2017-09-05 18:15
快速回复:求教各位大神如何在这个计算器上实现连续加减
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