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>>> seasons = [ 'Spring' , 'Summer' , 'Fall' , 'Winter' ]
>>> list ( enumerate ( seasons ) )
[ ( 0 , 'Spring' ) , ( 1 , 'Summer' ) , ( 2 , 'Fall' ) , ( 3 , 'Winter' ) ]
>>> list ( enumerate ( seasons , start = 1 ) ) # 下标从 1 开始
[ ( 1 , 'Spring' ) , ( 2 , 'Summer' ) , ( 3 , 'Fall' ) , ( 4 , 'Winter' ) ]
>>> seq = [ 'one' , 'two' , 'three' ]
>>> for i , element in enumerate ( seq ) :
... print i , element
0 one
1 two
2 three

输出结果:

['101', '102', '103']
叶秋