windows窗體計算器

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;/定義一個缺額標記 publi

2、c string sign_sum;/定義加號標記 public string sign_sub;/定義減號標記 public string sign_mul;/定義乘號標記 public string sign_div;/定義除號標記 public string sign_dian;/定義小數(shù)點標記 public string sign_bfhao;/定義一個百分號標記 public string sign_equ;/等于號標記 public string cpy;/導(dǎo)航菜單用于復(fù)制的內(nèi)容數(shù)據(jù) public double b = 10241024.10241023;/定義一個操作數(shù)b pub

3、lic double c = 10241024.10241023;/定義一個操作數(shù)據(jù)c public double g = 0;/定義一個操作數(shù)g public string d;/等于號記憶運算符 public double x;/求倒數(shù) public double f;/百分號暫存記憶運算符 public double e;/缺額運算符 public double m;/內(nèi)存記憶運算符 public double M;/內(nèi)存記憶運算符 public double s = 0;/根號運算符 public bool wuxiao = true;/定義一個除數(shù)不能為零的數(shù) public bool

4、 teshu = true;/定義一個特殊標記 public string zhantie=null; public bool clock=true;/鎖定按鍵運算符 public Form1() InitializeComponent(); private void Form1_Load(object sender, EventArgs e) this.Text = 計算器; private void 復(fù)制ToolStripMenuItem_Click(object sender, EventArgs e)/復(fù)制 Clipboard.SetText(txt_show.Text, TextDa

5、taFormat.Text); private void 粘貼ToolStripMenuItem_Click(object sender, EventArgs e)/粘貼 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 標準型ToolStripMenuItem_Click(object sender, EventArgs e) private void 幫助ToolStripMenuItem_Click(object sender, EventArgs e)/幫助 Help.ShowHelp(this, C:WINDOWShELPcalc.chm); private void btn_0_Click(object sender, EventArgs e)/數(shù)字0鍵 if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空

7、顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_0.Text;/給a賦上0 this.txt_show.Text += this.btn_0.Text;/將0顯示在顯示器上 this.teshu = true; else this.txt_show.Text = 不能同時輸入多個0！; /防止輸入多個0 else this.txt_show.Text = null;/清空顯示器上顯示的0 this.txt_show.Text = this.btn_0.Text; this.a += this.btn_0.Text;/給a

8、賦值為輸入的0 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private void btn_1_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_1.Text;/給a賦上1 this.txt_show.Text += this.btn_1.Text;/將1顯示在顯示

9、器上 this.teshu = true; else this.txt_show.Text = null;/清空顯示器上顯示的1 this.txt_show.Text = this.btn_1.Text; this.a += this.btn_1.Text;/給a 賦值為輸入的1 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private void btn_2_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Te

10、xt = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_2.Text;/給a賦上2 this.txt_show.Text += this.btn_2.Text;/將2顯示在顯示器上 this.teshu = true; else this.txt_show.Text = null;/清空顯示器上顯示的2 this.txt_show.Text = this.btn_2.Text; this.a += this.btn_2.Text;/給a 賦值為輸入的2 if (sign != null) this.sig

11、n_qe = null;/對缺額標記的內(nèi)容進行清空 private void btn_3_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_3.Text;/給a賦上3 this.txt_show.Text += this.btn_3.Text;/將3顯示在顯示器上 this.teshu = true; else this.tx

12、t_show.Text = null;/清空顯示器上顯示的3 this.txt_show.Text = this.btn_3.Text; this.a += this.btn_3.Text;/給a 賦值為輸入的3 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private void btn_4_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷

13、在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_4.Text;/給a賦上4 this.txt_show.Text += this.btn_4.Text;/將4顯示在顯示器上 this.teshu = true; else this.txt_show.Text = null;/清空顯示器上顯示的4 this.txt_show.Text = this.btn_4.Text; this.a += this.btn_4.Text;/給a 賦值為輸入的4 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private

14、void btn_5_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_5.Text;/給a賦上5 this.txt_show.Text += this.btn_5.Text;/將5顯示在顯示器上 this.teshu = true; else this.txt_show.Text = null;/清空顯示器上顯示的5 thi

15、s.txt_show.Text = this.btn_5.Text; this.a += this.btn_5.Text;/給a 賦值為輸入的5 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private void btn_6_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this

16、.btn_6.Text;/給a賦上6 this.txt_show.Text += this.btn_6.Text;/將1顯示在顯示器上 this.teshu = true; else this.txt_show.Text = null;/清空顯示器上顯示的6 this.txt_show.Text = this.btn_6.Text; this.a += this.btn_6.Text;/給a 賦值為輸入的6 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private void btn_7_Click(object sender, Ev

17、entArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_7.Text;/給a賦上7 this.txt_show.Text += this.btn_7.Text;/將7顯示在顯示器上 this.teshu = true; else this.txt_show.Text = null;/清空顯示器上顯示的7 this.txt_show.Text = this.btn_7.Text;

18、 this.a += this.btn_7.Text;/給a 賦值為輸入的7 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private void btn_8_Click(object sender, EventArgs e) if (wuxiao = true) if (teshu = false) this.txt_show.Text = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_8.Text;/給a賦上8 this.txt_show.T

19、ext += this.btn_8.Text;/將8顯示在顯示器上 this.teshu = true; else this.txt_show.Text = null;/清空顯示器上顯示的8 this.txt_show.Text = this.btn_8.Text; this.a += this.btn_8.Text;/給a 賦值為輸入的8 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private void btn_9_Click(object sender, EventArgs e) if (wuxiao = true) if (

20、teshu = false) this.txt_show.Text = null;/清空顯示器的內(nèi)容 if (a != 0)/判斷在一開始運算按下的第一個按鈕是不是為零 this.a += this.btn_9.Text;/給a賦上8 this.txt_show.Text += this.btn_9.Text;/將8顯示在顯示器上 this.teshu = true; else this.txt_show.Text = null;/清空顯示器上顯示的8 this.txt_show.Text = this.btn_9.Text; this.a += this.btn_9.Text;/給a 賦值為

21、輸入的8 if (sign != null) this.sign_qe = null;/對缺額標記的內(nèi)容進行清空 private void backspace_Click(object sender, EventArgs e)/后退鍵 if (wuxiao = true) if (a = null) /this.txt_show.Text = 請輸入數(shù)據(jù)！; else if (a.Length != 0) this.txt_show.Text = a.Remove(a.Length - 1, 1).ToString();/顯示區(qū)域上的數(shù)據(jù) a = a.Remove(a.Length - 1,

22、1);/計算器內(nèi)部數(shù)據(jù)向后退一 else this.txt_show.Text = 0.; this.teshu = false;/做特有的加號標記 private void ce_Click(object sender, EventArgs e)/一次運算完成后點擊該按鈕便會清空數(shù)據(jù)，再次輸入就開始新的運算 this.txt_show.Text = 0.; this.a = null;/記錄數(shù)據(jù)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; /對各個數(shù)據(jù)進行初始化 private void div_Click(object sender, Event

24、Args e)/除號 if (wuxiao = true) if (this.a = .) else this.sign = this.btn_div.Text;/做運算符的通用標記 if (c=10241024.10241023)/判斷是否與其他運算有關(guān)聯(lián) this.sign_div = this.btn_div.Text;/對除法做除號標記 b = 0; c = 0; this.sign_qe = this.btn_div.Text;/做缺額標記 this.c += Convert.ToDouble(a);/a的值賦給c this.e = this.c; this.f = this.e;

25、a = null;/將a的值置為0 sign_dian = null; else if (sign_equ = = & a != null)/按下等于號 開始新的運算 this.sign_equ = null; this.sign_div = null; this.c = 0; this.e = 0; this.c += Convert.ToDouble(a);/將a的值賦給c this.a = null; this.sign_div = this.btn_div.Text;/標記 return; else if (sign_div = / & sign_qe != / & sign_equ

26、= =)/判斷是否聯(lián)除 this.b += Convert.ToDouble(a); if (b = 0)/判斷除數(shù)是否為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 = 除數(shù)不能為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);/顯示器上顯示結(jié)果 return; else this.b += Convert.ToDouble(a);/將a的值傳遞給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)/乘號 if (wuxiao = true) if (this.a = .) else