'NoneType' object has no attribute '__getitem__'
报错
'NoneType' object has no attribute '__getitem__'
你 result 返回的是 None ,所以 result [0] 取不了值
做有积累的事~~
报错
'NoneType' object has no attribute '__getitem__'
你 result 返回的是 None ,所以 result [0] 取不了值