[已解决]求帮解决一下一个简单的问题...

Stubborn

1. class W:
   
2. 
   
3.     def __init__(self, string):
   
4.         self.string = string
   
5. 
   
6.     def __getitem__(self, item):
   
7.         return self.string[item]
   
8. 
   
9. 
   
10. w = W('123456')
    
11. print(w[2])
    
12. print(w[2:5])

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