Python迭代循环遍历列表元素时对列表内容的修改将影响迭代及循环重复数量

Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32
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>>> ls = list(range(10))
>>> ls
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> ls.remove(5)
>>> ls
[0, 1, 2, 3, 4, 6, 7, 8, 9]
>>> ls = list(range(10))
>>> ls
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> 
>>> for i in ls:
	print(i)

	
0
1
2
3
4
5
6
7
8
9
>>> ls
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> ls.remove(5)
>>> ls
[0, 1, 2, 3, 4, 6, 7, 8, 9]
>>> for i in ls:
	print(i)

	
0
1
2
3
4
6
7
8
9
>>> ls = list(range(10))
>>> ls
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> for i in ls:
	print(i)
	if i == 3:
		ls.remove(7)

		
0
1
2
3
4
5
6
8
9
>>> 
>>> 
>>>