python中enumerate函數遍曆元素用法分析

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本文執行個體講述了python中enumerate函數遍曆元素用法。分享給大家供大家參考,具體如下:

enumerate函數用於遍曆序列中的元素以及它們的下標

範例程式碼如下:

i = 0seq = ['one', 'two', 'three']for element in seq:  print i, seq[i]  i += 1#0 one#1 two#2 threeprint '============'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 cprint '============'def _treatment(pos, element):  return '%d: %s' %(pos, element)seq = ['one', 'two', 'three']print [_treatment(i, e1) for i, e1 in enumerate(seq)]

運行結果如下:

0 one1 two2 three============0 one1 two2 three============0 a1 b2 c============['0: one', '1: two', '2: three']

希望本文所述對大家Python程式設計有所協助。

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