Python在循环体中改变循环范围

xiaoxiao2021-02-28  42

使用for循环的方式会出现索引溢出的情况

list1 = [i for i in range(0, 10)] lenth = len(list1) for j in range(0, lenth): if list1[j] % 2 == 0: del list1[j]

报错

Traceback (most recent call last): File "F:/05 Python/pythoncode/paper_experience/mytest.py", line 6, in <module> if list1[j] % 2 == 0: IndexError: list index out of range

 

解决方法:

 

 

list1 = [i for i in range(0, 10)] print(list1) j=0 while j< len(list1): if list1[j] % 2 == 0: del list1[j] j+=1 print(list1)

while循环中执行循环体之前会执行一次len方法

 

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