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python中的enumerate()函数的用法-pengwei59的博客-51CTO博客
source link: http://blog.51cto.com/13543767/2065895
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enumerate()函数用于将一个可遍历的数据对象(如列表、元组或字符串)组合为一个索引序列，同时列出数据和数据下标，一般用在for循环当中，可以接手一到两个参数。ex：seq=['one','three','four']循环列表时：普通循环：为foriinseq：print（i）效果为：onethreefour可以看到只是输出列表元素，不带下标的
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