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（C#WPF计算器！一个刚刚入门一个星期Csharp的应届生！）
先入正题吧！
1：创建wpf应用。我用的VS是2013！
2：创建wpf文件并且起名字！
3：起一条虚线
3：打开我们电脑基本的计算器，然后我们模仿他来做计算器吧！
4：在工具箱找到lable，把他拖进来。并且起一个名字！设置他的属性。
4：再然后在工具箱找到button按钮把他拖进来。并且帮他起名字，还有设置他的属性！
5：写完整的界面，按钮直接复制粘贴就可以的！下一步进行后台代码！
6：定义三个变量存放数据！
7：设置按钮0的点击事件！然后数字键复制粘贴就可以了！
8：设置符号键，给他赋值！
9：设置C按键清除所有！这个问了很多人才找到的C按键清除lable！
10：设置等于号按键促发加减乘除！
11：然后一个计算器完成了！下面是全部代码！
namespaceLVcalculation
{
??///
??///MainWindow.xaml的交互逻辑
??///
??publicpartialclassMainWindow:Window
??{
????stringnumber1=null,number2=null,flag=null;//第一个变量存放按下的第一个字符，第二个变量存放按下符号键的字符。第三个存放符号的字符！
????publicMainWindow左边()右边
????{
??????InitializeComponent左边()右边;
????}
????privatevoidbutton0_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"0";
????????lable1.Content=number1;
??????}
??????else{
????????number2=number2+"0";
????????lable1.Content=number2;
???????
??????}
????}
????privatevoidbutton1_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"1";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"1";
????????lable1.Content=number2;
??????}
????}
????privatevoidbutton2_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"2";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"2";
????????lable1.Content=number2;
??????}
????}
????privatevoidbutton3_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"3";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"3";
????????lable1.Content=number2;
??????}
????}
????privatevoidbutton4_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"4";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"4";
????????lable1.Content=number2;
??????}
????}
????privatevoidbutton5_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"5";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"5";
????????lable1.Content=number2;
??????}
????}
????privatevoidbutton6_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"6";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"6";
????????lable1.Content=number2;
??????}
????}
????privatevoidbutton7_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"7";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"7";
????????lable1.Content=number2;
??????}
????}
????privatevoidbutton8_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"8";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"8";
????????lable1.Content=number2;
??????}
????}
????privatevoidbutton9_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+"9";
????????lable1.Content=number1;
??????}
??????else
??????{
????????number2=number2+"9";
????????lable1.Content=number2;
??????}
????}
????privatevoidbuttonb_Click(objectsender,RoutedEventArgse)
????{
??????flag="-";
????}
????privatevoidbuttona_Click(objectsender,RoutedEventArgse)
????{
??????flag="+";
????}
????privatevoidbuttone_Click(objectsender,RoutedEventArgse)
????{
??????flag="%";
????}
????privatevoidbuttond_Click(objectsender,RoutedEventArgse)
????{
??????flag="/";
????}
????privatevoidbuttonc_Click(objectsender,RoutedEventArgse)
????{
??????flag="*";
????}
????privatevoidbuttoncc_Click(objectsender,RoutedEventArgse)
????{
??????this.lable1.Content="";
????}
????privatevoidbuttongg_Click(objectsender,RoutedEventArgse)
????{
??????if(flag==null)
??????{
????????number1=number1+".";
????????lable1.Content=number1;
??????}
??????else{
????????number2=number2+".";
????????lable1.Content=number2;
???????
??????}
????}
????privatevoidbuttonf_Click(objectsender,RoutedEventArgse)
????{
??????switch(flag){
????????case"+":lable1.Content=Convert.ToString(Convert.ToDouble(number1)+Convert.ToDouble(number2));
??????????break;
????????case"-":lable1.Content=Convert.ToString(Convert.ToDouble(number1)-Convert.ToDouble(number2));
??????????break;
????????case"*":lable1.Content=Convert.ToString(Convert.ToDouble(number1)*Convert.ToDouble(number2));
??????????break;
????????case"/":lable1.Content=Convert.ToString(Convert.ToDouble(number1)/Convert.ToDouble(number2));
??????????break;
????????case"%":lable1.Content=Convert.ToString(Convert.ToDouble(number1)%Convert.ToDouble(number2));
??????????break;
??????}
??????number1=null;
??????number2=null;
??????flag=null;
????}
??}
}
12：还有一种方法写！注意这个方法的是用textbox，不是用lable。
13：下面是这个的全部代码！
????xmlns="" ????xmlns:x="" ????Title="为什么我写的计算器这么多bug"Height="350"MaxHeight="350"MinHeight="350"Width="525"MaxWidth="525"MinWidth="525" ????> ?? ????? ???? ?????? ?????? ?????? ?????? ?????? ?????? ???? ???? ?????? ?????? ?????? ?????? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ????? ??
namespaceWpfApplication1
{
??///
??///MainWindow.xaml的交互逻辑
??///
??publicpartialclassMainWindow:Window
??{
????doublea;//定义为存储结果。
????doubleb;//定义为第一位操作符。
????boolc=false;
????stringd;//定义为操作运算符号。
????publicMainWindow左边()右边
????{
??????InitializeComponent左边()右边;
????}
????privatevoidbuttonCC_Click(objectsender,RoutedEventArgse)
????{
??????textbox1.Text="";
????}
????privatevoidbutton0_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true){
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="0";
????}
????privatevoidbutton1_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true){
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="1";
????}
????privatevoidbutton2_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true)
??????{
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="2";
????}
????privatevoidbutton3_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true)
??????{
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="3";
????}
????privatevoidbutton4_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true)
??????{
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="4";
????}
????privatevoidbutton5_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true)
??????{
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="5";
????}
????privatevoidbutton6_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true)
??????{
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="6";
????}
????privatevoidbutton7_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true)
??????{
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="7";
????}
????privatevoidbutton8_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true)
??????{
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="8";
????}
????privatevoidbutton9_Click(objectsender,RoutedEventArgse)
????{
??????if(c==true)
??????{
????????textbox1.Text="";
????????c=false;
??????}
??????textbox1.Text+="9";
????}
????privatevoidbuttonc_Click(objectsender,RoutedEventArgse)
????{
??????c=true;
??????b=double.Parse(textbox1.Text);
??????d="*";
????}
????privatevoidbuttona_Click(objectsender,RoutedEventArgse)
????{
??????c=true;
??????b=double.Parse(textbox1.Text);
??????d="+";
????}
????privatevoidbuttonb_Click(objectsender,RoutedEventArgse)
????{
??????c=true;
??????b=double.Parse(textbox1.Text);
??????d="-";
????}
????privatevoidbuttond_Click(objectsender,RoutedEventArgse)
????{
??????c=true;
??????b=double.Parse(textbox1.Text);
??????d="/";
????}
????privatevoidbuttonf_Click(objectsender,RoutedEventArgse)
????{
??????c=true;
??????b=double.Parse(textbox1.Text);
??????d="%";
????}
????privatevoidbuttone_Click(objectsender,RoutedEventArgse)
????{
??????switch(d){
????????case"+":a=b+double.Parse(textbox1.Text);
??????????break;
????????case"-":a=b-double.Parse(textbox1.Text);
??????????break;
????????case"*":a=b*double.Parse(textbox1.Text);
??????????break;
????????case"/":a=b/double.Parse(textbox1.Text);
??????????break;
????????case"%":a=b%double.Parse(textbox1.Text);
??????????break;
??????}
??????textbox1.Text=a+"";
??????c=true;
????}
??}
}
根据大家的需求。以前写的计算器是不可以连续计算的。现在已经更改可以连续计算了。只是添加了几个判断。很简单的。
这个是代码，有注释哦。
第一：在计算器的数字进行判断。
第二：在等号的方法进行判断。超级简单易懂。
有需要源码的也可以联系我。有一次满足的大众的需求。哈哈哈哈哈~~~~
这个是项目的源码下载地：
如果有不足的地方欢迎多多指教！记得我是一个热爱编程的男孩子！有错误的地方多多指点！我是一个刚刚毕业入门的应届生！希望我们一起进步！有问题可以咨询我！欢迎给我留言！
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