C＃計算器程序＃

我目前在C＃中做了一個非常簡單的計算器程序，我的程序工作正常，因爲在加，減，乘和除功能工作正常，雖然我遇到的問題是十進制點無法正常工作。錯誤是當我用小數添加兩個數字時，它無法正常工作。也就是說，如果我加20和.5，結果將是20.5，但如果我加20和1.5，答案也是20.5。我相信這是因爲，由於我寫代碼的方式，計算器會忽略1.5中的數字1（請參閱我的代碼，因爲我相信你們可能知道如何解決這個問題）。任何幫助解決這個問題，將不勝感激。C＃計算器程序＃

（MainPage.xaml中的代碼）

<phone:PhoneApplicationPage 
x:Class="Calculator.MainPage" 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" 
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" 
xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768" 
FontFamily="{StaticResource PhoneFontFamilyNormal}" 
FontSize="{StaticResource PhoneFontSizeNormal}" 
Foreground="{StaticResource PhoneForegroundBrush}" 
SupportedOrientations="Portrait" Orientation="Portrait" 
shell:SystemTray.IsVisible="True"> 

<!--LayoutRoot is the root grid where all page content is placed--> 
<Grid x:Name="LayoutRoot" Background="Transparent"> 
    <Grid.RowDefinitions> 
     <RowDefinition Height="Auto"/> 
     <RowDefinition Height="*"/> 
    </Grid.RowDefinitions> 

    <!--TitlePanel contains the name of the application and page title--> 
    <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28"> 
     <TextBlock x:Name="ApplicationTitle" Text="Jason Lynch" Style="{StaticResource PhoneTextNormalStyle}"/> 
     <TextBlock x:Name="PageTitle" Text="Calculator" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/> 
    </StackPanel> 

    <!--ContentPanel - place additional content here--> 
    <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0"> 
     <Button Content="=" Height="116" Margin="218,485,0,0" Name="btnEquals" VerticalAlignment="Top" HorizontalAlignment="Left" Width="127" Background="#FFFF550D" FontSize="56" Click="btnEquals_Click" /> 
     <Button Content="-" Height="116" HorizontalAlignment="Center" Margin="323,485,6,0" Name="btnSubtract" VerticalAlignment="Top" Width="127" FontSize="56" Padding="0,-25,0,0" Click="btnSubtract_Click" /> 
     <Button Content="0" Height="116" HorizontalAlignment="Left" Margin="6,485,0,0" Name="btn0" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn0_Click" /> 
     <Button Content="Clear" Height="73" HorizontalAlignment="Left" Margin="112,485,0,0" Name="btnClear" VerticalAlignment="Top" Width="127" FontSize="28" Background="#FF0008FF" Click="btnClear_Click"></Button> 
     <Button Content="3" Height="116" HorizontalAlignment="Right" Margin="0,389,111,0" Name="btn3" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn3_Click" /> 
     <Button Content="+" Height="116" HorizontalAlignment="Left" Margin="323,389,0,0" Name="btnAdd" VerticalAlignment="Top" Width="127" FontSize="56" Click="btnAdd_Click" /> 
     <Button Content="1" Height="116" HorizontalAlignment="Left" Margin="6,389,0,0" Name="btn1" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn1_Click" /> 
     <Button Content="2" Height="116" HorizontalAlignment="Left" Margin="112,389,0,0" Name="btn2" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn2_Click" /> 
     <Button Content="6" Height="116" HorizontalAlignment="Right" Margin="0,294,111,0" Name="btn6" VerticalAlignment="Top" Width="127" Click="button9_Click" FontSize="56" /> 
     <Button Content="x" Height="116" HorizontalAlignment="Right" Margin="0,294,6,0" Name="btnMultiply" VerticalAlignment="Top" Width="127" FontSize="56" Click="btnMultiply_Click" /> 
     <Button Content="4" Height="116" HorizontalAlignment="Left" Margin="6,294,0,0" Name="btn4" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn4_Click" /> 
     <Button Content="5" Height="116" HorizontalAlignment="Left" Margin="112,294,0,0" Name="btn5" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn5_Click" /> 
     <Button Content="9" Height="116" HorizontalAlignment="Left" Margin="218,199,0,0" Name="btn9" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn9_Click" /> 
     <Button Content="÷" Height="116" HorizontalAlignment="Left" Margin="323,199,0,0" Name="btnDivide" VerticalAlignment="Top" Width="127" FontSize="56" Click="btnDivide_Click" /> 
     <Button Content="7" Height="116" HorizontalAlignment="Left" Margin="6,199,0,0" Name="btn7" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn7_Click" /> 
     <Button Content="8" Height="116" HorizontalAlignment="Left" Margin="112,199,0,0" Name="btn8" VerticalAlignment="Top" Width="127" FontSize="56" Click="btn8_Click" /> 
     <TextBox Height="72" HorizontalAlignment="Left" Margin="0,65,0,0" Name="resultTxtBox" Text="" VerticalAlignment="Top" Width="460" /> 
     <TextBlock Height="53" HorizontalAlignment="Left" Margin="169,26,0,0" Name="textBlock1" Text="Result" VerticalAlignment="Top" FontSize="36" /> 
     <Button Content="." Height="68" HorizontalAlignment="Left" Margin="112,533,0,0" Name="btnDecimalPoint" VerticalAlignment="Top" Width="127" Click="btnDecimalPoint_Click" HorizontalContentAlignment="Center" /> 
    </Grid> 
</Grid> 

<!--Sample code showing usage of ApplicationBar--> 
<!--<phone:PhoneApplicationPage.ApplicationBar> 
    <shell:ApplicationBar IsVisible="True" IsMenuEnabled="True"> 
     <shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1"/> 
     <shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2"/> 
     <shell:ApplicationBar.MenuItems> 
      <shell:ApplicationBarMenuItem Text="MenuItem 1"/> 
      <shell:ApplicationBarMenuItem Text="MenuItem 2"/> 
     </shell:ApplicationBar.MenuItems> 
    </shell:ApplicationBar> 
</phone:PhoneApplicationPage.ApplicationBar>-->

（MainPage.xaml.cs中的代碼）

using System; 
    using System.Collections.Generic; 
    using System.Linq; 
    using System.Net; 
    using System.Windows; 
    using System.Windows.Controls; 
    using System.Windows.Documents; 
    using System.Windows.Input; 
    using System.Windows.Media; 
    using System.Windows.Media.Animation; 
    using System.Windows.Shapes; 
    using Microsoft.Phone.Controls; 

    namespace Calculator 
    { 
     public partial class MainPage : PhoneApplicationPage 
     { 
      // Constructor 
      public MainPage() 
      { 
       InitializeComponent(); 
      } 

      private double total1 = 0; 
      private double total2 = 0; 
      bool plusButtonClicked = false; 
      bool minusButtonClicked = false; 
      bool multiplyButtonClicked = false; 
      bool divideButtonClicked = false; 


      private void btn0_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "0"; 
      } 

      private void btn1_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "1"; 
      } 

      private void btn2_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "2"; 
      } 

      private void btn3_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "3"; 
      } 

      private void btn4_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "4"; 
      } 

      private void btn5_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "5"; 
      } 

      //MESSED UP BUTTON *** button9 == btn6 
      private void button9_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "6"; 
      } 

      private void btn7_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "7"; 
      } 

      private void btn8_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "8"; 
      } 

      private void btn9_Click(object sender, RoutedEventArgs e) 
      { 
       resultTxtBox.Text = resultTxtBox.Text + "9"; 
      } 

      private void btnAdd_Click(object sender, RoutedEventArgs e) 
      { 
       total1 = total1 += double.Parse(resultTxtBox.Text); 
       resultTxtBox.Text = ""; 

       plusButtonClicked = true; 
       minusButtonClicked = false; 
       multiplyButtonClicked = false; 
       divideButtonClicked = false; 
      } 

      private void btnSubtract_Click(object sender, RoutedEventArgs e) 
      { 
       total1 = total1 + double.Parse(resultTxtBox.Text); 
       resultTxtBox.Text = ""; 

       plusButtonClicked = false; 
       minusButtonClicked = true; 
       multiplyButtonClicked = false; 
       divideButtonClicked = false; 
      } 

      private void btnMultiply_Click(object sender, RoutedEventArgs e) 
      { 
       total1 = total1 + double.Parse(resultTxtBox.Text); 
       resultTxtBox.Text = ""; 

       plusButtonClicked = false; 
       minusButtonClicked = false; 
       multiplyButtonClicked = true; 
       divideButtonClicked = false; 
      } 

      private void btnDivide_Click(object sender, RoutedEventArgs e) 
      { 
       total1 = total1 + double.Parse(resultTxtBox.Text); 
       resultTxtBox.Text = ""; 

       plusButtonClicked = false; 
       minusButtonClicked = false; 
       multiplyButtonClicked = false; 
       divideButtonClicked = true; 
      } 

      private void btnEquals_Click(object sender, RoutedEventArgs e) 
      { 
       if (plusButtonClicked == true) 
       { 
        total2 = total1 + double.Parse(resultTxtBox.Text); 
        resultTxtBox.Text = total2.ToString(); 
        total1 = 0; 
       } 
      else if (minusButtonClicked == true) 
      { 
        total2 = total1 - double.Parse(resultTxtBox.Text); 
        resultTxtBox.Text = total2.ToString(); 
        total1 = 0; 
      } 
      else if (multiplyButtonClicked == true) 
      { 
        total2 = total1 * double.Parse(resultTxtBox.Text); 
        resultTxtBox.Text = total2.ToString(); 
        total1 = 0; 
      } 
      else if (divideButtonClicked == true) 
      { 
        total2 = total1/double.Parse(resultTxtBox.Text); 
        resultTxtBox.Text = total2.ToString(); 
        total1 = 0; 
      } 
     } 

     private void btnClear_Click(object sender, RoutedEventArgs e) 
     { 
       resultTxtBox.Text = ""; 
     } 

     private void btnDecimalPoint_Click(object sender, RoutedEventArgs e) 
     { 
       resultTxtBox.Text = "."; 
     } 

    } 
}

最後，這裏是我的計算器應用程序的擷取畫面>>http://gyazo.com/717b396e32b39d4a42e91ad9cf67cdef

感謝您提前提供幫助， Jason。

來源

2014-02-13 JasonL95

這似乎是有關DecimalPoint_Click方法。我會盡力回覆 – shingonati0n

漂亮的應用程序！ – Kevin

你必須改變

private void btnDecimalPoint_Click(object sender, RoutedEventArgs e) 
{ 
    resultTxtBox.Text = ","; 
}

與

private void btnDecimalPoint_Click(object sender, RoutedEventArgs e) 
{ 
    resultTxtBox.Text += ","; 
}

來源

2014-02-13 11:21:22 Akrem

感謝您的幫助Akrem，this是我需要的修復:) – JasonL95

首先，你不必寫

resultTxtBox.Text = resultTxtBox.Text + "8";

每次

。簡單使用

resultTxtBox.Text += "8";

這是一樣的。在我看來，它更具可讀性。

其次，線

total1 = total1 += double.Parse(resultTxtBox.Text);

是多餘的。

total1 += double.Parse(resultTxtBox.Text);

是相同的結果。 ;）

第三，對於您的小數點的代碼讀取

private void btnDecimalPoint_Click(object sender, RoutedEventArgs e) 
{ 
    resultTxtBox.Text = "."; 
}

所以你小數點替換resultTxtBox.Text文本。所以我無法想象如何在第一時間編寫1.5，因爲一旦您點擊小數點按鈕，就會從文本框中刪除1。

來源

2014-02-13 11:17:30 waka

感謝您對需要修復/提煉的代碼的建議。雖然在你看來，你如何得到小數點在這個計算器中工作，因爲這是我遇到的問題，我一直無法找到小數點按鈕的工作修復程序 – JasonL95

C＃計算器程序＃

回答

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