描述:
enumerate() 函数可将一个可遍历的数据对象(如列表、元组或字符串),
组合为一个索引序列,
同时列出数据和数据下标,
一般用在 for 循环当中。
实例:
普通for循环:
>>> i = 0
>>> seq = ['one', 'two', 'three']
>>> for element in seq:
... print i, seq[i]
... i +=1
...
0 one
1 two
2 three
enumerate函数:
>>> seq = ['one', 'two', 'three']
>>> for i, element in enumerate(seq):
... print i, element
...
0 one
1 two
2 three
参考博文https://www.runoob.com/python/python-func-enumerate.html