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enumerate 函数用于遍历序列中的元素以及它们的下标:
>>> for i,j in enumerate((‘a‘,‘b‘,‘c‘)):
print i,j
0 a
1 b
2 c
>>> for i,j in enumerate([1,2,3]):
print i,j
0 1
1 2
2 3
>>> for i,j in enumerate({‘a‘:1,‘b‘:2}):
print i,j
0 a
1 b
>>> for i,j in enumerate(‘abc‘):
print i,j
0 a
1 b
2 c
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原文地址:http://www.cnblogs.com/heshangaichirou/p/5398670.html