当我们在python中运行以下代码片段时，为什么20会被打印出来

Question

为什么在python shell中运行以下代码片段时会打印20？

print 0xA + 0xa

Answer 1

0x前缀用于表示十六进制数。 0xA + 0xA等于0x14。打印会将其转换为十进制数字，标记为20。

Answer 2

0xA和0xa是10代表<Window x:Class="CharunOptics.Search" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Charun Optics" Height="800px" Width="1600px" WindowStartupLocation="CenterScreen" WindowState="Maximized" Loaded="Window_Loaded"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="1*"/> <RowDefinition Height="7*"/> </Grid.RowDefinitions> <Grid Grid.Row="0"> <Grid.ColumnDefinitions> <ColumnDefinition Width="1*"></ColumnDefinition> <ColumnDefinition Width="3*"></ColumnDefinition> <ColumnDefinition Width="1*"></ColumnDefinition> </Grid.ColumnDefinitions> <Grid Grid.Row="0" Grid.Column="1"> <Grid.ColumnDefinitions> <ColumnDefinition Width="1*"></ColumnDefinition> <ColumnDefinition Width="1*"></ColumnDefinition> <ColumnDefinition Width="1*"></ColumnDefinition> </Grid.ColumnDefinitions> <Label Content="Search: (Name or Contact)" Grid.Row="0" Grid.Column="0" HorizontalAlignment="Right" Margin="0,0,25,0" VerticalAlignment="Center" FontSize="20"/> <TextBox Grid.Column="1" HorizontalAlignment="Stretch" Height="auto" Margin="25,0,25,0" TextWrapping="Wrap" Text="" VerticalAlignment="Center" FontSize="20" Grid.Row="0" Name="TxtName"/> <Button x:Name="BtnSearch" Grid.Column="2" Grid.Row="0" Content="Search" FontSize="20" Click="BtnSearch_Click" Margin="32"/> </Grid> </Grid> <DataGrid Grid.Row="1" Grid.Column="0" Name="DtGrid" ColumnWidth="*" CanUserAddRows="False"> <DataGrid.ColumnHeaderStyle> <Style TargetType="{x:Type DataGridColumnHeader}"> <Setter Property="Background" Value="{StaticResource PrimaryBrush}"/> <Setter Property="Foreground" Value="{StaticResource PrimaryFont}" /> <Setter Property="HorizontalContentAlignment" Value="Center" /> </Style> </DataGrid.ColumnHeaderStyle> </DataGrid> </Grid> 。