710661809 发表于 2018-8-14 09:56:57

Python的内置函数

In : l = ['x','y','z']  

  
In : el = enumerate(l)
  

  
In : for i in el:
  
    ...:   print(i)
  
    ...:
  
(0, 'x')
  
(1, 'y')
  
(2, 'z')
  

  
In : for i in enumerate(l,1):
  
    ...:
  
    ...:   print(i)
  
    ...:
  
(1, 'x')
  
(2, 'y')
  
(3, 'z')
  

  
In : for i,item in enumerate(l,1):
  
    ...:
  
    ...:   print(i,item)
  
    ...:
  
    ...:
  
1 x
  
2 y
  
3 z
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