windows窗体计算器

1、using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace test1 public partial class Form1 : Form public string a; public string a1; public string sign; public string sign_qe;/定义一个缺额标记 publi

2、c string sign_sum;/定义加号标记 public string sign_sub;/定义减号标记 public string sign_mul;/定义乘号标记 public string sign_div;/定义除号标记 public string sign_dian;/定义小数点标记 public string sign_bfhao;/定义一个百分号标记 public string sign_equ;/等于号标记 public string cpy;/导航菜单用于复制的内容数据 public double b = 10241024.10241023;/定义一个操作数b pub

3、lic double c = 10241024.10241023;/定义一个操作数据c public double g = 0;/定义一个操作数g public string d;/等于号记忆运算符 public double x;/求倒数 public double f;/百分号暂存记忆运算符 public double e;/缺额运算符 public double m;/内存记忆运算符 public double M;/内存记忆运算符 public double s = 0;/根号运算符 public bool wuxiao = true;/定义一个除数不能为零的数 public bool

4、 teshu = true;/定义一个特殊标记 public string zhantie=null; public bool clock=true;/锁定按键运算符 public Form1() InitializeComponent(); private void Form1_Load(object sender, EventArgs e) this.Text = 计算器; private void 复制ToolStripMenuItem_Click(object sender, EventArgs e)/复制 Clipboard.SetText(txt_show.Text, TextDa

5、taFormat.Text); private void 粘贴ToolStripMenuItem_Click(object sender, EventArgs e)/粘贴 a1 = Clipboard.GetText(); zhantie = null; for (int i = 0; i a1.Length; i+) if (int)a1i 57) zhantie = zhantie; break; if (zhantie != zhantie) txt_show.Text = Clipboard.GetText(); this.a = this.txt_show.Text; private

6、 void 标准型ToolStripMenuItem_Click(object sender, EventArgs e) private void 帮助ToolStripMenuItem_Click(object sender, EventArgs e)/帮助 Help.ShowHelp(this, C:WINDOWShELPcalc.chm); private void btn_0_Click(object sender, EventArgs e)/数字0键 if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空

7、显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_0.Text;/给a赋上0 this.txt_show.Text += this.btn_0.Text;/将0显示在显示器上 this.teshu = true; else this.txt_show.Text = 不能同时输入多个0！; /防止输入多个0 else this.txt_show.Text = null;/清空显示器上显示的0 this.txt_show.Text = this.btn_0.Text; this.a += this.btn_0.Text;/给a

8、赋值为输入的0 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private void btn_1_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_1.Text;/给a赋上1 this.txt_show.Text += this.btn_1.Text;/将1显示在显示

9、器上 this.teshu = true; else this.txt_show.Text = null;/清空显示器上显示的1 this.txt_show.Text = this.btn_1.Text; this.a += this.btn_1.Text;/给a 赋值为输入的1 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private void btn_2_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Te

10、xt = null;/清空显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_2.Text;/给a赋上2 this.txt_show.Text += this.btn_2.Text;/将2显示在显示器上 this.teshu = true; else this.txt_show.Text = null;/清空显示器上显示的2 this.txt_show.Text = this.btn_2.Text; this.a += this.btn_2.Text;/给a 赋值为输入的2 if (sign != null) this.sig

11、n_qe = null;/对缺额标记的内容进行清空 private void btn_3_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_3.Text;/给a赋上3 this.txt_show.Text += this.btn_3.Text;/将3显示在显示器上 this.teshu = true; else this.tx

12、t_show.Text = null;/清空显示器上显示的3 this.txt_show.Text = this.btn_3.Text; this.a += this.btn_3.Text;/给a 赋值为输入的3 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private void btn_4_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空显示器的内容 if (a != 0)/判断

13、在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_4.Text;/给a赋上4 this.txt_show.Text += this.btn_4.Text;/将4显示在显示器上 this.teshu = true; else this.txt_show.Text = null;/清空显示器上显示的4 this.txt_show.Text = this.btn_4.Text; this.a += this.btn_4.Text;/给a 赋值为输入的4 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private

14、void btn_5_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_5.Text;/给a赋上5 this.txt_show.Text += this.btn_5.Text;/将5显示在显示器上 this.teshu = true; else this.txt_show.Text = null;/清空显示器上显示的5 thi

15、s.txt_show.Text = this.btn_5.Text; this.a += this.btn_5.Text;/给a 赋值为输入的5 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private void btn_6_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this

16、.btn_6.Text;/给a赋上6 this.txt_show.Text += this.btn_6.Text;/将1显示在显示器上 this.teshu = true; else this.txt_show.Text = null;/清空显示器上显示的6 this.txt_show.Text = this.btn_6.Text; this.a += this.btn_6.Text;/给a 赋值为输入的6 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private void btn_7_Click(object sender, Ev

17、entArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_7.Text;/给a赋上7 this.txt_show.Text += this.btn_7.Text;/将7显示在显示器上 this.teshu = true; else this.txt_show.Text = null;/清空显示器上显示的7 this.txt_show.Text = this.btn_7.Text;

18、 this.a += this.btn_7.Text;/给a 赋值为输入的7 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private void btn_8_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_8.Text;/给a赋上8 this.txt_show.T

19、ext += this.btn_8.Text;/将8显示在显示器上 this.teshu = true; else this.txt_show.Text = null;/清空显示器上显示的8 this.txt_show.Text = this.btn_8.Text; this.a += this.btn_8.Text;/给a 赋值为输入的8 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private void btn_9_Click(object sender, EventArgs e) if (wuxiao = true) if (

20、teshu = false) this.txt_show.Text = null;/清空显示器的内容 if (a != 0)/判断在一开始运算按下的第一个按钮是不是为零 this.a += this.btn_9.Text;/给a赋上8 this.txt_show.Text += this.btn_9.Text;/将8显示在显示器上 this.teshu = true; else this.txt_show.Text = null;/清空显示器上显示的8 this.txt_show.Text = this.btn_9.Text; this.a += this.btn_9.Text;/给a 赋值为

21、输入的8 if (sign != null) this.sign_qe = null;/对缺额标记的内容进行清空 private void backspace_Click(object sender, EventArgs e)/后退键 if (wuxiao = true) if (a = null) /this.txt_show.Text = 请输入数据！; else if (a.Length != 0) this.txt_show.Text = a.Remove(a.Length - 1, 1).ToString();/显示区域上的数据 a = a.Remove(a.Length - 1,

22、1);/计算器内部数据向后退一 else this.txt_show.Text = 0.; this.teshu = false;/做特有的加号标记 private void ce_Click(object sender, EventArgs e)/一次运算完成后点击该按钮便会清空数据，再次输入就开始新的运算 this.txt_show.Text = 0.; this.a = null;/记录数据清空 this.sign = null; this.sign_sum = null; this.sign_sub = null; this.sign_mul = null; this.sign_div

23、 = null; this.sign_equ = null; this.sign_bfhao = null; this.sign_dian = null; this.sign_qe = null; this.b = 10241024.10241023; this.c = 10241024.10241023; this.d = null; this.f = 0; this.x = 0; this.s = 0; this.clock = true; this.wuxiao = true; /对各个数据进行初始化 private void div_Click(object sender, Event

24、Args e)/除号 if (wuxiao = true) if (this.a = .) else this.sign = this.btn_div.Text;/做运算符的通用标记 if (c=10241024.10241023)/判断是否与其他运算有关联 this.sign_div = this.btn_div.Text;/对除法做除号标记 b = 0; c = 0; this.sign_qe = this.btn_div.Text;/做缺额标记 this.c += Convert.ToDouble(a);/a的值赋给c this.e = this.c; this.f = this.e;

25、a = null;/将a的值置为0 sign_dian = null; else if (sign_equ = = & a != null)/按下等于号 开始新的运算 this.sign_equ = null; this.sign_div = null; this.c = 0; this.e = 0; this.c += Convert.ToDouble(a);/将a的值赋给c this.a = null; this.sign_div = this.btn_div.Text;/标记 return; else if (sign_div = / & sign_qe != / & sign_equ

26、= =)/判断是否联除 this.b += Convert.ToDouble(a); if (b = 0)/判断除数是否为0 if (b = 0 & c = 0) this.txt_show.Text = 0; this.clock = false; return; else c = 0; this.txt_show.Text = null; this.txt_show.Text = 除数不能为0！; this.wuxiao = false; return; this.c /= this.b; b = 0; a = null; sign_dian = null; this.txt_show.T

27、ext = Convert.ToString(c);/显示器上显示结果 return; else this.b += Convert.ToDouble(a);/将a的值传递给b this.sign_div = this.btn_div.Text; if (sign_sum = +) this.c += this.b; sign_sum = null; else if (sign_sub = -) this.c -= this.b; sign_sub = null; else if (sign_mul = *) this.c *= this.b; sign_mul = null; a = null; b = 0; sign_dian = null; this.txt_show.Text = Convert.ToString(c); return; private void mul_Click(object sender, EventArgs e)/乘号 if (wuxiao = true) if (this.a = .) else