溝.

強大な自分は唯一の幸福を得る道で、これは長期的で、今の遊びではありません!

forループ、ループリスト、または辞書を使用して、サイズを変更します.

#   
>>> l1 = [11, 22, 33, 44, 55, 66]
>>> del l1[1::2]                 #   del       
>>> print(l1)
[11, 33, 55]
>>> for i in range(len(l1)):     #    for，         
...     if i % 2 == 1:
...             del l1[i]
...
>>> print(l1)
[11, 55]
>>>


#   
>>> dic1 = {"name": "zuowei", "age": 18, "hobby": "lp"}
>>> for i in dic1:
...     if "name" in dic1:
...             del dic1[i]
...                                    #              ，   
Traceback (most recent call last):
  File "", line 1, in 
RuntimeError: dictionary changed size during iteration

解決:

#   
#       del     
#     for     
>>> l1 = [11, 22, 33, 44, 55, 66]
>>> for i in range(len(l1)-1, -1, -1):
...     if i % 2 == 1:
...             del l1[i]
...
>>> print(l1)
[11, 33, 55]

#   
#     for       ，         key        ，         
>>> dic1 = {"name": "zuowei", "age": 18, "hobby": "lp"}
>>> l1 = []
>>> for k, v in dic1.items():
...     if v == "lp":
...             l1.append(k)         #             key   l1
...
>>> for i in l1:                     #       
...     del dic1[i]                  #      key
...
>>> print(dic1)
{'name': 'zuowei', 'age': 18}