本文實例講述了python中enumerate函數(shù)遍歷元素用法。分享給大家供大家參考,具體如下:
enumerate函數(shù)用于遍歷序列中的元素以及它們的下標(biāo)
示例代碼如下:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
i = 0 seq = [ 'one' , 'two' , 'three' ] for element in seq: print i, seq[i] i + = 1 #0 one #1 two #2 three print '============' seq = [ 'one' , 'two' , 'three' ] for i, element in enumerate (seq): print i, seq[i] print '============' for i,j in enumerate ( 'abc' ): print i,j #0 a #1 b #2 c print '============' def _treatment(pos, element): return '%d: %s' % (pos, element) seq = [ 'one' , 'two' , 'three' ] print [_treatment(i, e1) for i, e1 in enumerate (seq)] |
運行結(jié)果如下:
1
2
3
4
5
6
7
8
9
10
11
12
13
|
0 one 1 two 2 three = = = = = = = = = = = = 0 one 1 two 2 three = = = = = = = = = = = = 0 a 1 b 2 c = = = = = = = = = = = = [ '0: one' , '1: two' , '2: three' ] |
希望本文所述對大家Python程序設(shè)計有所幫助。