C编程 科学计算器

1、using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace Calculator public partial class Counter : Form public Counter() InitializeComponent(); double num1, num2; double result=0; int op; i

2、nt flag=0;/开始标志 int sp = 0;/判断除数为零时移除监听 int max = 0;/范围标识 int eq=0; #region 功能键 private void on_Click(object sender, EventArgs e)/开始 flag = 1; sp = 0; max = 0; this.numInput.Text = "0" this.txtInput.Text = "" private void off_Click(object sender, EventArgs e)/关闭 flag = 0; sp = 0;

3、 max = 0; this.numInput.Text = "" this.txtInput.Text = "" private void button9_Click(object sender, EventArgs e)/删除 max = 0; if (flag = 1&&sp=0) string numstring = this.numInput.Text; if (numstring.Length > 0) string temp = numstring.Substring(0, numstring.Length - 1);

4、 this.numInput.Text = temp.ToString(); else this.numInput.Text = "0" private void clear_Click(object sender, EventArgs e)/c清零 max = 0; if (flag = 1) sp = 0; this.numInput.Text = "0" this.txtInput.Text = "" private void delete_Click(object sender, EventArgs e)/清零 max = 0

5、; if (flag = 1) sp = 0; this.numInput.Text = "0" #endregion #region 运算符 private void equal_Click(object sender, EventArgs e)/等号 eq = 1; if (flag = 1 && sp = 0) max = 0; num2 = Convert.ToDouble(this.numInput.Text); this.txtInput.Text += num2.ToString(); this.txtInput.Text += "=

6、" txtInput.Text = null; switch (op) case 1: result = num1 + num2; break; case 2: result = num1 - num2; break; case 3: result = num1 * num2; break; case 4: result = num1 / num2; break; case 5: result = Math.Pow(num1, num2); break; case 6: result = Mod(num1, num2); break; default: return; if (op

7、= 4&&num2 = 0) this.numInput.Text = "除数不能为0" sp = 1; else /this.txtInput.Text += result.ToString(); this.numInput.Text = result.ToString(); private void sub_Click(object sender, EventArgs e)/减法 max = 0; if (flag = 1 && sp = 0) num1 = Convert.ToDouble(this.numInput.Text); th

8、is.txtInput.Text += num1.ToString(); numInput.Text = "" this.txtInput.Text += "-" op = 2; private void mul_Click(object sender, EventArgs e)/乘法 max = 0; if (flag = 1 && sp = 0) num1 = Convert.ToDouble(this.numInput.Text); this.txtInput.Text += num1.ToString(); this.numInp

9、ut.Text = "" this.txtInput.Text += "*" op = 3; private void divide_Click(object sender, EventArgs e)/除法 max = 0; if (flag = 1 && sp = 0) num1 = Convert.ToDouble(this.numInput.Text); this.txtInput.Text += num1.ToString(); this.numInput.Text = "" this.txtInput.Tex

10、t += "/" op = 4; private void plus_Click(object sender, EventArgs e)/加法 max = 0; if (flag = 1 && sp = 0) num1 = Convert.ToDouble(this.numInput.Text); this.txtInput.Text += num1.ToString(); numInput.Text = "" this.txtInput.Text += "+" op = 1; public double Mod(do

11、uble x, double y)/取模运算 max = 0; int temp = Convert.ToInt32(x / y); return (x - y * temp); private void power_Click(object sender, EventArgs e)/幂运算 max = 0; if (flag = 1 && sp = 0) num1 = Convert.ToDouble(numInput.Text); this.txtInput.Text += num1.ToString(); this.numInput.Text = ""

12、 this.txtInput.Text += "" op = 5; private void recip_Click(object sender, EventArgs e)/倒数 max = 0; if (flag = 1 && sp = 0) num1 = Convert.ToDouble(this.numInput.Text); double temp = 0; temp = 1 / num1; this.txtInput.Text = "1/" + num1.ToString() + "=" this.numIn

13、put.Text = temp.ToString(); private void percent_Click(object sender, EventArgs e) max = 0; if (flag = 1 && sp = 0) /double temp = Convert.ToDouble(this.numInput.Text); /this.txtInput.Text += temp.ToString(); /temp = temp / 100; /this.numInput.Text = temp.ToString(); /this.txtInput.Text += &

14、quot;%=" num1 = Convert.ToDouble(this.numInput.Text); this.txtInput.Text += num1.ToString(); this.numInput.Text = "" this.txtInput.Text += "%" op = 6; #endregion #region 数字 private void one_Click(object sender, EventArgs e)/1 if (flag = 1 && sp = 0 && max = 0

15、) if (this.numInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "1" eq = 0; else this.numInput.Text += "1" private void two_Click(object sender, EventArgs e)/2 if (flag = 1 && sp = 0 && max = 0) if (this.numInput.Text =

16、 "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "2" eq = 0; else this.numInput.Text += "2" /this.txtInput.Text += "2" private void three_Click(object sender, EventArgs e)/3 if (flag = 1 && sp = 0 && max = 0) if (this.nu

17、mInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "3" eq = 0; else this.numInput.Text += "3" /this.txtInput.Text += "3" private void four_Click(object sender, EventArgs e)/4 if (flag = 1 && sp = 0 && max = 0)

18、 if (this.numInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "4" eq = 0; else this.numInput.Text += "4" / this.txtInput.Text += "4" private void five_Click(object sender, EventArgs e)/5 if (flag = 1 && sp = 0 &&

19、amp; max = 0) if (this.numInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "5" eq = 0; else this.numInput.Text += "5" /this.txtInput.Text += "5" private void six_Click(object sender, EventArgs e)/6 if (flag = 1 && sp

20、 = 0 && max = 0) if (this.numInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "6" eq = 0; else this.numInput.Text += "6" /this.txtInput.Text += "6" private void seven_Click(object sender, EventArgs e)/7 if (flag = 1

21、&& sp = 0 && max = 0) if (this.numInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "7" eq = 0; else this.numInput.Text += "7" /this.txtInput.Text += "7" private void eight_Click(object sender, EventArgs e)/8

22、if (flag = 1 && sp = 0 && max = 0) if (this.numInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "8" eq = 0; else this.numInput.Text += "8" /this.txtInput.Text += "8" private void night_Click(object sender, Ev

23、entArgs e)/9 if (flag = 1 && sp = 0 && max = 0) if (this.numInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "9" eq = 0; else this.numInput.Text += "9" /this.txtInput.Text += "9" private void zero_Click(objec

24、t sender, EventArgs e)/0 if (flag = 1 && sp = 0 && max = 0) if (this.numInput.Text = "0") this.numInput.Text = "" if (eq = 1) this.numInput.Text = "0" eq = 0; else this.numInput.Text += "0" /this.txtInput.Text += "0" private void dian

25、_Click(object sender, EventArgs e)/小数点 if (flag = 1 && sp = 0 && max = 0) if (eq = 1) this.numInput.Text = "." eq = 0; else this.numInput.Text += "." /this.txtInput.Text += "." #endregion #region 三角函数 private void sin_Click(object sender, EventArgs e)/si

26、n if (flag = 1 && sp = 0) num1 = Convert.ToDouble(this.numInput.Text); double temp = Math.PI * (num1 / 180); this.txtInput.Text += "sin(" + num1 + ")=" num1 = Math.Sin(temp); this.numInput.Text = num1.ToString(); /this.txtInput.Text += num1.ToString(); private void cos_Cl

27、ick(object sender, EventArgs e)/cos if (flag = 1 && sp = 0) num1 = Convert.ToDouble(this.numInput.Text); double temp = Math.PI * (num1 / 180); this.txtInput.Text += "cos(" + num1 + ")=" num1 = Math.Cos(temp); this.numInput.Text = num1.ToString(); private void tan_Click(ob

28、ject sender, EventArgs e)/tan if (flag = 1 && sp = 0) num1 = Convert.ToDouble(this.numInput.Text); double temp = Math.PI * (num1 / 180); this.txtInput.Text += "tan(" + num1 + ")=" num1 = Math.Tan(temp); this.numInput.Text = num1.ToString(); #endregion #region 帮助 private v

29、oid 关于产品ToolStripMenuItem_Click(object sender, EventArgs e) MenuAbout about = new MenuAbout(); about.Show(); private void change_Click(object sender, EventArgs e) max = 0; if (flag = 1&&sp = 0) num1 = Convert.ToDouble(this.numInput.Text); num1 = -num1; this.numInput.Text = num1.ToString(); p

30、rivate void 使用手册ToolStripMenuItem_Click(object sender, EventArgs e) MenuUse use = new MenuUse(); use.Show(); #endregion #region 皮肤 private void 皮肤1ToolStripMenuItem_Click(object sender, EventArgs e) skinEngine1.SkinFile = Application.StartupPath + "Calmness.ssk" private void 皮肤2ToolStripMenuItem_Click(object sender, EventArgs e) skinEngine1.SkinFile = Application.StartupPath + "DeepCyan.ssk" private void 皮肤3ToolStripMenuItem_Click(object sender, EventArgs e) skinEngine1.SkinFile =