How to use python (3.5) json standard library to print floats with trailing zeros?
import json
to_be_serialized = {'something': 0.020}
print(json.dumps(to_be_serialized))
{"something": 0.02} # desired output: {"something": 0.020}
I tried this but unfortunately without desired result.
答案 0 :(得分：1)
花车并不是为了保存这类信息而设计的。 0.020和0.02相同。
但您可以手动设置小数位数：
import json
test = 0.020
print(json.dumps({'test': '{:.3f}'.format(test)}))
将打印
{"test": "0.020"}
请注意：a）现在这是一个字符串，不再是浮点数，而b）{:.3f}部分专门将小数位数设置为3。
答案 1 :(得分：1)
最后我被迫使用非标准的python库BorderLayout。 （因为<Style x:Key="DefaultLanguageButtonStyle" TargetType="{x:Type Button}" > <!--BasedOn="{StaticResource DefaultButton}" >-->
<Setter Property="OverridesDefaultStyle" Value="True" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="border" BorderThickness="0" BorderBrush="DarkGray" Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter TargetName="border" Property="BorderBrush" Value="Black" />
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Effect">
<Setter.Value>
<Border BorderThickness="5,5,0,0" >
</Border>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="FontSize" Value="30" />
<Setter Property="FontWeight" Value="Bold" />
<Setter Property="HorizontalAlignment" Value="Center" />
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="Foreground" Value="{DynamicResource RedBrush}" />
<Setter Property="Background" Value="{DynamicResource WhiteBrush}" />
<Setter Property="BorderThickness" Value="{DynamicResource NoBorder}" />
<Setter Property="Height" Value="100" />
</Style>
包不支持小数）
simplejson我无法找到使用标准json库执行此操作的方法，但至少它正在运行。