C#编程科学计算器.doc

.. -
using System;
using System.Collections.Generic;
using System.ponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace Calculator
{
publicpartialclassCounter : Form
{
public Counter()
{
Initializeponent();
}
double num1, num2;
double result=0;
int op;
int flag=0;//开场标志
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
privatevoid on_Click(object sender, EventArgs e)//开场
{
flag = 1;
sp = 0;
max = 0;
this.numInput.Text = "0";
this.txtInput.Text = "";
}

privatevoid off_Click(object sender, EventArgs e)//关闭
{
flag = 0;
sp = 0;
max = 0;
this.numInput.Text = "";
this.txtInput.Text = "";
}
privatevoid 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);
this.numInput.Text = temp.ToString();
}
else
{
this.numInput.Text = "0";
}
}

}
privatevoid clear_Click(object sender, EventArgs e)//c清零
{
max = 0;
if (flag == 1)
{
sp = 0;
this.numInput.Text = "0";
this.txtInput.Text = "";
}
}
privatevoid delete_Click(object sender, EventArgs e)//清零
{
max = 0;
if (flag == 1)
{
sp = 0;
this.numInput.Text = "0";
}

}

#endregion
#region 运算符
privatevoid 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 += "=";
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 == 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();

}

}
privatevoid sub_Click(object sender, EventArgs e)//减法
{
max = 0;
if (flag == 1 && sp == 0)
{
num1 = Convert.ToDouble(this.numInput.Text);
this.txtInput.Text += num1.ToString();
numInput.Text = "";
this.txtInput.Text += "-";
op = 2;
}

}

privatevoid 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.numInput.Text = "";
this.txtInput.Text += "*";
op = 3;
}
}

privatevoid 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.Text += "/";
op = 4;
}
}
privatevoid 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;
}

}
publicdouble Mod(double x, double y)//取模运算
{
max = 0;
int temp = Convert.ToInt32(x / y);
return (x - y * temp);
}
privatevoid 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 = "";
this.txtInput.Text += "^";
op = 5;
}

}
privatevoid 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.numInput.Text = temp.ToString();
}
}
privatevoid 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 += "%=";

num1 = Convert.ToDouble(this.numInput.Text);
this.txtInput.Text += num1.ToString();
this.numInput.Text = "";
this.txtInput.Text += "%";
op = 6;
}

}
#endregion
#region 数字
privatevoid one_Click(object sender, EventArgs e)//1
{
if (flag == 1 && sp == 0 && max == 0)
{

if (this.numInput.Text == "0")
{
this.numInput.Text = "";
}
if (eq == 1)
{
this.numInput.Text = "1";
eq = 0;
}else
this.numInput.Text += "1";
}
}
privatevoid two_Click(object sender, EventArgs e)//2
{
if (flag == 1 && sp == 0 && max == 0)
{
if (this.numInput.Text == "0")
{
this.numInput.Text = "";
}
if (eq == 1)
{
this.numInput.Text = "2";
eq = 0;
}
else
this.numInput.Text += "2";
//this.txtInput.Text += "2";
}
}

privatevoid three_Click(object sender, EventArgs e)//3
{
if (flag == 1 && sp == 0 && max == 0)
{
if (this.numInput.Text == "0")
{
this.numInput.Text = "";
}
if (eq == 1)
{
this.numInput.Text = "3";
eq = 0;
}
else
this.numInput.Text += "3";
//this.txtInput.Text += "3";
}
}

privatevoid four_Click(object sender, EventArgs e)//4
{
if (flag == 1 && sp == 0 && max == 0)
{
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";
}
}

privatevoid five_Click(object sender, EventArgs e)//5
{
if (flag == 1 && sp == 0 && 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";
}
}

privatevoid six_Click(object sender, EventArgs e)//6
{
if (flag == 1 && sp == 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";
}
}

privatevoid seven_Click(object sender, EventArgs e)//7
{
if (flag == 1 && 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";
}
}

privatevoid eight_Click(object sender, EventArgs e)//8
{
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";
}
}

privatevoid night_Click(object sender, EventArgs 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";
}
}

privatevoid zero_Click(object 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";
}
}
privatevoid dian_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
privatevoid sin_Click(object sender, EventArgs e)//sin
{
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();
}

}

privatevoid cos_Click(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();
}
}

privatevoid tan_Click(object 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
privatevoid 关于产品ToolStripMenuItem_Click(object sender, EventArgs e)
{
MenuAbout about = newMenuAbout();
about.Show();
}

privatevoid 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();
}
}

privatevoid 使用手册ToolStripMenuItem_Click(object sender, EventArgs e)
{
MenuUse use = newMenuUse();
use.Show();
}
#endregion
#region 皮肤
privatevoid 皮肤1ToolStripMenuItem_Click(object sender, EventArgs e)
{
skinEngine1.SkinFile = Application.StartupPath + "\Calmness.ssk";
}

privatevoid 皮肤2ToolStripMenuItem_Click(object sender, EventArgs e)
{
skinEngine1.SkinFile = Application.StartupPath + "\DeepCyan.ssk";
}

privatevoid 皮肤3ToolStripMenuItem_Click(object sender, EventArgs e)
{
skinEngine1.SkinFile = Application.StartupPath + "\Eighteen.ssk";
}

privatevoid 皮肤4ToolStripMenuItem_Click(object sender, EventArgs e)
{
skinEngine1.SkinFile = Application.StartupPath + "\GlassGreen.ssk";
}

privatevoid 皮肤5ToolStripMenuItem_Click(object sender, EventArgs e)
{
skinEngine1.SkinFile = Application.StartupPath + "\Silver.ssk";
}
#endregion
#region 复制粘贴
privatevoid 复制ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (numInput.SelectionLength > 0)
{
numInput.Copy();
}
}

privatevoid 粘贴ToolStripMenuItem_Click(object sender, EventArgs e)
{
numInput.Paste();
}
#endregion
privatevoid Counter_Load(object sender, EventArgs e)
{
numInput.SelectAll();
Rectangle ScreenArea = System.Windows.Forms.Screen.GetBounds(this);
int width = ScreenArea.Width;
int heigth = ScreenArea.Height;
this.Location = newPoint((width / 2) - (this.Width / 2), (heigth / 2) - (this.Height / 2));
}

privatevoid numInput_TextChanged(object sender, EventArgs e)//numtext
{
string numstring = this.numInput.Text;
if (numstring.Length > 14)
{
max = 1;
}
}
}
}

. . word.zl-