enumerate是一个内置函数，作用就在于解决了计数的问题
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>>> for i,ch in enumerate(foo): ... print ch,'%d' % i ... a 0 b 1 c 2 >>> |
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my_list = ['apple', 'banana', 'grapes', 'pear'] for c, value in enumerate(my_list, 1): print(c, value) # Output: # 1 apple # 2 banana # 3 grapes # 4 pear |
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