Python 遍历数组对象怎么取序号?
我想取 i[‘key’] 和 i+1[‘key’]
怎么取?
怎么取?
#还有 list[0][‘a’] == list[1][‘a’] 不是可以直接比较啊,没有太看懂你的问题
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Traceback (most recent call last):
File “C:/python/t.py”, line 10, in <module>
if (item[‘code’] == db[index + 1][‘code’]):
File “C:pythonvenvlibsite-packagespymongocursor.py”, line 612, in __getitem__
self.__check_okay_to_chain()
File “C:pythonvenvlibsite-packagespymongocursor.py”, line 401, in __check_okay_to_chain
raise InvalidOperation(“cannot set options after executing query”)
pymongo.errors.InvalidOperation: cannot set options after executing query
for index, mem in enumerate(list):
if index < len(list) – 1:
print(mem[‘a’])
print(list[index + 1][‘a’])