本文实例讲述了python中enumerate函数遍历元素用法。分享给大家供大家参考,具体如下:
enumerate函数用于遍历序列中的元素以及它们的下标
示例代码如下:
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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)] |
运行结果如下:
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0 one 1 two 2 three = = = = = = = = = = = = 0 one 1 two 2 three = = = = = = = = = = = = 0 a 1 b 2 c = = = = = = = = = = = = [ '0: one' , '1: two' , '2: three' ] |
希望本文所述对大家Python程序设计有所帮助。