TypeError: 'NoneType' object is unsubscriptable
x = None 然后你使用了x[0],就会出现这个错误。
If a list a is none, and you use a[1], it will throw this error
TypeError: 'NoneType' object is unsubscriptable
x = None 然后你使用了x[0],就会出现这个错误。
If a list a is none, and you use a[1], it will throw this error