python中的csv的writerow在大多数情况下不起作用 [英] csv's writerow in python doesn't work most of the time

问题描述

我有一些非常简单的代码:

I have some very simple piece of code:

import csv
out = csv.writer(open('test.csv', 'wb'), delimiter=",")
out.writerow([u"value1", u"value2", u"value3"])

有时可以正常工作，但大多数时候都无效！我记得我以前使用过writerow，现在工作得很好，我在这里遗漏了什么?

It sometimes works, but most of the time it doesn't! I remember I used writerow previously and it was working just fine, what am I missing here?

为了使问题更清楚:尽管执行了上面的代码而没有任何错误，但csv文件仍然为空

To make the problem clearer: the csv file remains empty although the above code is executed without any errors

推荐答案

我将代码修改如下:

import csv
f = open('test.csv', 'wb')
out = csv.writer(f, delimiter=",")
out.writerow([u"value1", u"value2", u"value3"])
f.close()

所以我所做的就是将open('test.csv', 'wb')分离并将其分配给f，以便最后可以使用f.close().这样可以很好地工作.

So all I've done is that I separated the open('test.csv', 'wb') and assigned it to f, so that I can use f.close() at the end. It works perfectly this way.

这篇关于python中的csv的writerow在大多数情况下不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！