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python,with open

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用python的时候，会经常遇到文件数据库的open，但总会不小心忘了close

用with open 语句就能很好的解决这个问题，它会在语句执行完后，自动执行close（）

with open('./prepare_channels.txt', 'r') as f:    
    for s in f:
        channels.add(s.strip())

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python 从另一个包导入文件 | python 如何在一个文件中调用另一个文件的 ...

2012-04-06 10:18
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