从python打印excel文件中的数字格式

Question

I have multiple columns of negetive numbers, integers.我有多列负数，整数。 Some of them has to be in a specific format.其中一些必须采用特定格式。

Ex: Input dataframe:例如：输入数据帧：

Value1 Value2 Value2
1 -5 -50.5
2 35.6 -70
-4 3 -20

expected output is预期输出是

Value1 Value2 Value2
1 (5) (50.5)
2 35.6 (70)
-4 3 (20)

As you can see only Value2 and Value3 columns have negative values which are displayed in parenthesis.如您所见，只有 Value2 和 Value3 列具有显示在括号中的负值。

Now i have tried the below to display the required format and its working fine:现在我尝试了以下显示所需的格式及其工作正常：

formatter = lambda x: '(%s)' % str(x)[1:] if x < 0 else str(x)
pd.options.display.float_format = formatter
df6.head()

but when i use the below to print it in excel file It does not follow the required format.但是当我使用下面的在 excel 文件中打印它时，它不遵循所需的格式。

df6.to_excel('output.xlsx', index=False)
print('Spreadsheet saved.')

I need a way to print this properly in excel output file我需要一种在 excel 输出文件中正确打印的方法

Answer 1

df6.applymap(formatter).to_excel('output.xlsx', index=False)