<Window x:Class="fengjisuanqi.MainWindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"Title="我的简单计算器" Height="700" Width="480" ResizeMode="CanMinimize"><Grid Margin="0,0,0,0"><Grid.ColumnDefinitions><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/><ColumnDefinition/></Grid.ColumnDefinitions><Grid.RowDefinitions><RowDefinition Height="3*"/><RowDefinition Height="*"/><RowDefinition Height="2*"/><RowDefinition Height="2*"/><RowDefinition Height="2*"/><RowDefinition Height="2*"/></Grid.RowDefinitions><!--<StackPanel Grid.Row="0" Grid.ColumnSpan="4" Margin="0"><TextBlock Name="gongshi" Height="Auto" Margin="0,10,0,0" Background="#FF5D4D4D" HorizontalAlignment="Right" FontSize="36" Width="470" Foreground="White"/><TextBlock Name="jiguo" Height="80" Margin="0" Background="#ff5d4d4d" HorizontalAlignment="Right" Width="470" FontSize="36" Foreground="White"></TextBlock></StackPanel>--><TextBlock Name="ss" Grid.Row="0" Grid.ColumnSpan="4" Width="470" Height="Auto" Margin="0,0,0,0" Background="#FF5D4D4D" HorizontalAlignment="Right" FontSize="36" Foreground="White"/><TextBlock Name="gongshi" Grid.Row="0" Grid.ColumnSpan="4" Height="Auto" Margin="0,0,0,0" Background="#FF5D4D4D" HorizontalAlignment="Right" FontSize="36" Foreground="White"/><TextBlock Name="jiguo" Grid.Row="0" Grid.ColumnSpan="4" Height="60" Margin="0" Background="#FF5D4D4D" HorizontalAlignment="Right" FontSize="36" Foreground="White"/><Button Content="7" FontSize="50" Grid.Row="2" Grid.Column="0" Click="Button_Click_1" Name="B7" /><Button Content="8" FontSize="50" Grid.Row="2" Grid.Column="1" Click="Button_Click_1" Name="B8" /><Button Content="9" FontSize="50" Grid.Row="2" Grid.Column="2" Click="Button_Click_1" Name="B9" /><Button Content="4" FontSize="50" Grid.Row="3" Grid.Column="0" Click="Button_Click_1" Name="B4" /><Button Content="5" FontSize="50" Grid.Row="3" Grid.Column="1" Click="Button_Click_1" Name="B5" /><Button Content="6" FontSize="50" Grid.Row="3" Grid.Column="2" Click="Button_Click_1" Name="B6" /><Button Content="1" FontSize="50" Grid.Row="4" Grid.Column="0" Click="Button_Click_1" Name="B1" /><Button Content="2" FontSize="50" Grid.Row="4" Grid.Column="1" Click="Button_Click_1" Name="B2" /><Button Content="3" FontSize="50" Grid.Row="4" Grid.Column="2" Click="Button_Click_1" Name="B3" /><Button Content="." FontSize="50" Grid.Row="5" Grid.Column="0" Click="Button_Click_1" Name="B" /><Button Content="0" FontSize="50" Grid.Row="5" Grid.Column="1" Click="Button_Click_1" Name="B0" /><Button Name="divide" FontSize="50" Content="/" Grid.Column="3" Grid.Row="2" Click="fuhao_Click_1"/><Button Name="Multiply" FontSize="50" Content="*" Grid.Column="3" Grid.Row="3" Click="fuhao_Click_1"/><Button Name="Minus" FontSize="50" Content="-" Grid.Column="3" Grid.Row="4" Click="fuhao_Click_1"/><Button Name="Add" FontSize="50" Content="+" Grid.Column="3" Grid.Row="5" Click="fuhao_Click_1"/><Button Name="result" FontSize="50" Grid.Column="2" Grid.Row="5" Click="result_Click_1" Content="="/><Button Name="del" FontSize="30" Grid.Column="3" Grid.Row="1" Content="CE" Click="del_Click_1" Background="#FFEE0E0E"/><Button Name="tuige" FontSize="30" Grid.Column="2" Grid.Row="1" Content="退格" Click="tuige_Click_1"/><Rectangle Name="rect" Grid.Row="1" Grid.ColumnSpan="2"><Rectangle.Fill><LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"><GradientStop Color="#FF9DA49F" Offset="0"/><GradientStop Color="White" Offset="1"/></LinearGradientBrush></Rectangle.Fill></Rectangle></Grid>
</Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;namespace fengjisuanqi
{/// <summary>/// MainWindow.xaml 的交互逻辑/// </summary>public partial class MainWindow : Window{private string anxiazhi = "";private double resultnum = 0.0;public MainWindow(){InitializeComponent();}//运算方法private void OperationNum(string s){if (jiguo.Text != ""){switch (anxiazhi){case "": resultnum = double.Parse(jiguo.Text);anxiazhi = s;break;case "+": resultnum = resultnum + double.Parse(jiguo.Text);anxiazhi = s;break;case "-": resultnum = resultnum - double.Parse(jiguo.Text);anxiazhi = s;break;case "*": resultnum = resultnum * double.Parse(jiguo.Text);anxiazhi = s;break;case "/": if (double.Parse(jiguo.Text) != 0.0){resultnum = resultnum / double.Parse(jiguo.Text);}else{resultnum = 0.0;}anxiazhi = s;break;default: break;}}else{anxiazhi = s;}}private void Button_Click_1(object sender, RoutedEventArgs e){if (anxiazhi == "="){gongshi.Text = "";jiguo.Text = "";anxiazhi = "";resultnum = 0.0;}string s = ((Button)sender).Content.ToString();jiguo.Text = jiguo.Text + s;gongshi.Text = gongshi.Text + s;}//按运算符号的事件处理private void fuhao_Click_1(object sender, RoutedEventArgs e){if (anxiazhi == "="){gongshi.Text = jiguo.Text;anxiazhi = "";}string s = ((Button)sender).Content.ToString();//获得按钮文本内容gongshi.Text = gongshi.Text + s;OperationNum(s);jiguo.Text = "";}//按“=”号计算结果private void result_Click_1(object sender, RoutedEventArgs e){OperationNum("=");jiguo.Text = resultnum.ToString();}//清除操作private void del_Click_1(object sender, RoutedEventArgs e){jiguo.Text = "";gongshi.Text = "";anxiazhi = "";resultnum = 0.0;}//退格private void tuige_Click_1(object sender, RoutedEventArgs e){//获取字符串长度int le = jiguo.Text.Length;int le2 = gongshi.Text.Length;if (le > 1&&le2>1){jiguo.Text = jiguo.Text.Substring(0, le - 1);gongshi.Text = gongshi.Text.Substring(0, le2 - 1);}}}
}