2006-10-18 13:04:00| 分类: lang_python | 标签: |举报 |字号大中小 订阅
>>> type(range(10))Python Manual 里面说,xrange 是“instead of returning a list, returns an object that generates the numbers in the range on demand. For looping, this is slightly faster than range() and more memory efficient.”,因此在迭代的时候,xrange 更有效率。
(type 'list')
>>> type(xrange(10))
(type 'xrange')
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