python 报错RuntimeError: dictionary changed size during iteration

1 a = {‘1‘:11, ‘2‘:0, ‘3‘:0}
2 for b in list(a.keys()):
3     if a[b] == 0:
4         del a[b]
5
6 print(a)

报错是因为在字典迭代期间改变字典大小

我们可以通过取出字典的键值，在转化为列表，这样在for循环期间就可以删除了

原文地址：https://www.cnblogs.com/lonelyshy/p/9775717.html

时间： 2024-08-16 07:26:13

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