实际上，为序列编制索引可能是最常用的序列操作——究竟为什么在迭代器上无法使用索引呢？

In fact, indexing into a sequence is probably the most common thing you ever do with a sequence — why on earth does it fall down so badly on iterators? For example.

youdao

实际上，为序列编制索引可能是最常用的序列操作——究竟为什么在迭代器上无法使用索引呢？

In fact, indexing into a sequence is probably the most common thing you ever do with a sequence — why on earth does it fall down so badly on iterators? For example.

youdao