C#实现计算器窗体程序

本文实例为大家分享了c#实现计算器窗体程序的具体代码，供大家参考，具体内容如下

功能设计

1、计算器算天数中，添加 0-9 共十个数字键。

2、计算器中，增添 加、减、乘、除、等于五个功能键。

3、计算器中，增加四个功能键：x2，sqrt，log, ln 四个键，分别计算求平方，开方。

实现代码

using system;using system.collections.generic;using system.com茶叶小知识ponentmodel;using system.data;using system.drawing;using system.linq;using system.text;using system.threading.tasks;using system.windows.forms;namespace test3_1{  public partial class form1 : form  {    double result = 0;       //存储计算结果    double number = 0;       //存储输入的数字    bool exist_value = fal;    //判断文本框中是否有值    string operation;        //存储输入的运算符    /*    * 初始化    */    public form1()    {      initializecomponent();    }    /*    * 数字键触发事件实现    */    private void ven_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "7";    }    private void eight_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "8";    }    private void nine_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "9";    }    private void four_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "4";    }    private void five_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "5";    }    private void six_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "6";    }    private void one_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "1";    }    private void two_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "2";    }    private void three_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "3";    }    private void zero_click(object nder, eventargs e)    {      if (exist_value == true)      {        textbox1.text = "";        exist_value = fal;      }      textbox1.text += "0";    }    /*    * 功能键触发事件    */    private void add_click(object nder, eventargs e)    {      if (textbox1.text == "")      {        messagebox.show("请先输入值再计算！", "错误提示", messageboxbuttons.ok, messageboxicon.warning);      }      el      {        exist_value = true;        number = double.par(textbox1.text);        operation = "+";      }    }    private void sub_click(object nder, eventargs e)    {      if (textbox1.text == "")      {        messagebox.show("请先输入值再计算！", "错误提示", messageboxbuttons.ok, messageboxicon.warning);      }      el      {        exist_value = true;        number = double.par(textbox1.text);        operation = "-";      }    }    private void mul_click(object nder, eventargs e)    {      if (textbox1.text == "")      {        messagebox.show("请先输入值再计算！", "错误提示", messageboxbuttons.ok, messageboxicon.warning);      }      el      {        exist_value = true;        number = double.par(textbox1.text);        operation = "*";      }    }    private void div_click(object nder, eventargs e)    {      if (textbox1.text == "")      {        messagebox.show("请先输入值再计算！", "错误提示", messageboxbuttons.ok, messageboxicon.warning);      }      el      {        exist_value = true;        number = double.par(textbox1.text);        operation = "/";      }    }    private void squ_click(object nder, eventargs e)    {      if (textbox1.text == "")      {        messagebox.show("请先输入值再计算！", "错误提示", messageboxbuttons.ok, messageboxicon.warning);      }      el      {        exist_value = true;        number = double.par(textbox1.tex形容人多的四字词语t);        operation = "x^2";      }           }    private void sqrt_click(object nder, eventargs e)    {      if (textbox1.text == "")      {        messagebox.show("请先输入值再计算！", "错误提示", messageboxbuttons.ok, messageboxicon.warning);      }      el      {        exist_value = true;        number = double.par(textbox1.text);        operation = "sqrt";      }    }    private void log_click(object nder, eventargs e)    {      if (textbox1.text == "")      {        messagebox.show("请先输入值再计算！", "错误提示", messageboxbuttons.ok, messageboxicon.warning);      }      el      表语是什么意思{        exist_value = true;        number = double.par(textbox1.text);        operation = "log";      }    }    private void ln_click(object nder, eventargs e)    {      if (textbox1.text == "")      {        messagebox.show("请先输入值再计算！", "错误提示", messageboxbuttons.ok, messageboxicon.warning);      }      el      {        exist_value = true;        number = double.par(textbox1.text);        operation = "ln";      }    }    private void del_click(object nder, eventargs e)    {      textbox1.text = "";    }    private void equ_click(object nder, eve作文我的烦恼ntargs e)    {      switch (operation)      {        ca "+": result = number + double.par(textbox1.text); break;        ca "-": result = number - double.par(textbox1.text); break;        ca "*": result = number * double.par(textbox1.text); break;        ca "/":          {            double temp=double.par(textbox1.text);            if (temp != 0)              result = number / temp;            el              messagebox.show("除数不能为零", "错误提示", messageboxbuttons.ok, messageboxicon.warning);            break;          }        ca "x^2": result = number * number; break;        ca "sqrt": result = math.sqrt(number); break;        ca "log": result = math.log10(number); break;        ca "ln": result = math.log(number); break;      }      textbox1.text = result + "";      exist_value = true;    }  }}

界面设计

运行结果

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