一个用WPF做的简单计算器源代码
一、界面设计XAML代码
<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>
二、效果图
三、后台逻辑代码
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); } } } }
