python中enumerate函数遍历元素用法分析
摘要：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...
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：
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：
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。
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