Question

我要删除美元符号格式$###,##0.00，并用#,##0.00数字格式替换。

我尝试过更改工作表中一个单元格的格式，但是我不知道它是否在做任何事情，因为文件中没有任何变化。

wb = openpyxl.load_workbook('example.xlsx')
sheet = wb['example']
sheet('E7').number_format = '#,##0.00'

我希望输出将E7的值从 $ 380.00 更改为 380.00 ，但是我收到TypeError: 'Worksheet' object is not callable且文件没有任何作用。< / p>

Answer 1

对于单个单元格：

import re
f_clean = lambda x: re.sub('[$\-,\|]', '', x)
f_float = lambda x: float(x) if x!='' else np.NaN

print(f_float(f_clean('$10,000.00')))
# 10000.0

对于整列：

# Here's a solution I use for large datasets:

import re

def lookup_money(s):
    """
    This is an extremely fast approach to parsing currency to floats.
    For large data, the same currencies are often repeated. Rather than
    re-parse these, we store all unique values, parse them, and
    use a lookup to convert all figures.
    (Should be 10X faster than without lookup dict)
    """
    f_clean = lambda x: re.sub('[$\-,\|]', '', x)
    f_float = lambda x: float(x) if x!='' else np.NaN
    currencies = {curr:f_float(f_convert(curr)) for curr in s.unique()}
    return s.map(currencies)

# apply to some df as such:
# df['curr'] = df['curr'].apply(lookup_money)

如何更改Excel电子表格中某些列的数字格式？

1 个答案: