wujunkai

回复 1# netdzb

import re
with open('text.txt','r') as fin:
    print(re.search(r'(?<=begin===).+?(?=end===)',fin.read(),re.DOTALL).group())
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或者更简洁一点

import re
print(re.search(r'(?<=begin===).+?(?=end===)',open('text.txt','r').read(),re.DOTALL).group())
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