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)]
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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' ]
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希望本文所述对大家Python程序设计有所帮助。