简易计算器代码,CSharp代码库,德仔网

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【CSharp】简易计算器
作者:376352302 / 发布于2012/6/25/ 617
<div>?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;</div>
<div>
namespace WindowsApplication1
{
 
 public partial class Form1 : Form
 {
 String Fh="";//用于存储符号运算符
 double a, b, c;//a为第一个接收的值，b为第二个值，c为计算结果
 long s = 1;//初始小数的位数
 public Form1()
 {
 InitializeComponent();
 }
<div>
 public void anniu(double i)//按钮的方法
 {
 if (Fh.Equals(""))//是否当前有运算符
 {
 if (s == 1)//判断是否有小数点
 {
 a = a * 10 + i;//计算无小数的值
 }
 else 
 {
 a = a + i / s;//计算有小数的值
 s = s * 10;//计算下一个小数的位置
 } 
 textBox1.Text = a.ToString();//显示计算的结果
 }
 else //当前有运算符的方法
 { 
 if (!(c == 0)) { b = 0; c = 0; }//当有计算结果就清除B的值
 if (s == 1)//判断是否有小数点
 {
 b = b * 10 + i;//计算无小数的值
 }
 else
 {
 if (i == 0)//判断在小数位后添加0
 {
 s = s * 10;//计算下一个小数的位置
 }
 else
 {
 b = b + i / s;//计算有小数的值
 s = s * 10;//计算下一个小数的位置
 }
 }
 textBox1.Text = b.ToString();//显示计算的结果
 }
 }
<div>
 public void js() {//数学计算的方法
 if (Fh=="/")//判断是否除数等于0
 {
 if (b == 0) //是则不计算
 {
 textBox1.Text = "被除数不能为0";//显示被除数不能为0
 return;//返回
 }
 else
 {
 c = a / b; 
 }
 }
 else//如果不是出发计算则执行其他计算
 {
 if (Fh.Equals("+")) { c = a + b; }
 if (Fh.Equals("-")) { c = a - b; }
 if (Fh.Equals("*")) { c = a * b; } 
 if (Fh.Equals("%")) { c = a % b; } 
 }
 textBox1.Text = c.ToString(); //显示计算结果
 a = c;//将结果给第一个变量作为 
 }
<div></div>
<div> public void fh(string str) //接收运算符的方法
 {
 if (Fh.Equals(""))//当前是否已经有运算符
 {
 Fh = str; s = 1;//没有则接收运算符,小数点失效
 }
 else 
 {
 js(); s = 1; Fh = str;//有则计算当前的值,小数点失效
 }
 }
<div>
</div>
<div> private void Form1_Load(object sender, System.EventArgs e)
 {</div>
<div> }
<div> private void button1_Click(object sender, System.EventArgs e)
 {
 anniu(1);
 }
 private void button2_Click(object sender, System.EventArgs e)
 {
 anniu(2);
 }
 private void button3_Click_1(object sender, System.EventArgs e)
 {
 anniu(3);
 }
<div> private void button4_Click_1(object sender, System.EventArgs e)
 {
 anniu(4);
 }
<div> private void button7_Click_1(object sender, System.EventArgs e)
 {
 anniu(5);
 }
<div> private void button6_Click_1(object sender, System.EventArgs e)
 {
 anniu(6);
 }
<div> private void button5_Click_1(object sender, System.EventArgs e)
 {
 anniu(7);
 }
<div> private void button8_Click_1(object sender, System.EventArgs e)
 {
 anniu(8);
 }
<div> private void button9_Click_1(object sender, System.EventArgs e)
 {
 anniu(9);
 }
<div></div>
<div></div>
<div>
 private void button3_Click(object sender, EventArgs e)
 {
 anniu(3);
 }
<div> private void button4_Click(object sender, EventArgs e)
 {
 anniu(4);
 }
<div> private void button5_Click(object sender, EventArgs e)
 {
 anniu(5);
 }
<div> private void button7_Click(object sender, EventArgs e)
 {
 anniu(6);
 }
<div> private void button6_Click(object sender, EventArgs e)
 {
 anniu(7);
 }
<div> private void button8_Click(object sender, EventArgs e)
 {
 anniu(8);
 }
<div> private void button9_Click(object sender, EventArgs e)
 {
 anniu(9);
 }
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div>
 private void button10_Click_1(object sender, System.EventArgs e)
 {
 if (!textBox1.Text.Equals("0"))
 {
 anniu(0);
 }
 }
<div> private void button11_Click_1(object sender, System.EventArgs e)
 {
 fh("+");//调用运算符的方法
 }
<div> private void button12_Click_1(object sender, System.EventArgs e)
 {
 fh("-");
 }
<div> private void button13_Click_1(object sender, System.EventArgs e)
 {
 fh("*");
 }
<div> private void button14_Click_1(object sender, System.EventArgs e)
 {
 fh("/");
 }
<div> private void button15_Click_1(object sender, System.EventArgs e)
 {
 fh("%");
 }
<div> private void button16_Click_1(object sender, System.EventArgs e)
 {
 js();
 }
<div> private void button17_Click_1(object sender, System.EventArgs e)
 {
 textBox1.Text = "0";//清空TEXTBOX的显示值
 a = 0; b = 0; c = 0; s = 1; Fh = "";//初始化所有值
 }
<div> private void button18_Click_1(object sender, System.EventArgs e)
 {
 if (Fh.Equals("")) { a = -a; textBox1.Text = a.ToString(); } else { b = -b; textBox1.Text = b.ToString(); }//初始当前值的正负号
 }
<div> private void button19_Click_1(object sender, System.EventArgs e)
 {
 if (s == 1) { s = 10; }//如果之前有过使用小数点则跳过当前小数点按钮的方法,否则初始小数点的
 }
<div></div>
<div></div>
<div> }
 
}
<div></div>
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