Lev*_*von 37
两个解决方案.
要删除最后4个字符:
s = 'this is a string1234'
s = s[:-4]
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产量
'this is a string'
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更具体地说,面向文件名,考虑os.path.splitext()意味着将文件名拆分为其基础和扩展名:
import os
s = "Forest.bmp"
base, ext = os.path.splitext(s)
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结果是:
print base
'Forest'
print ext
'.bmp'
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