Python csv.reader：如何返回到文件的顶部？ [英] Python csv.reader: How do I return to the top of the file?

问题描述

当我使用csv.reader移动文件时，如何返回到文件的顶部。如果我做一个正常的文件，我可以做一些像file.seek（0）。

When I'm moving through a file with a csv.reader, how do I return to the top of the file. If I were doing it with a normal file I could just do something like "file.seek(0)". Is there anything like that for the csv module?

提前感谢;）

推荐答案

您可以直接寻找文件。例如：

You can seek the file directly. For example:

>>> f = open("csv.txt")
>>> c = csv.reader(f)
>>> for row in c: print row
['1', '2', '3']
['4', '5', '6']
>>> f.seek(0)
>>> for row in c: print row   # again
['1', '2', '3']
['4', '5', '6']

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