It does not know to which container an iterator is bound, nor does it know how many elements are in a container.

编译器无法知道迭代器所关联的是哪个容器，也不知道容器内有多少个元素。

youdao

It does not know to which container an iterator is bound, nor does it know how many elements are in a container.

编译器无法知道迭代器所关联的是哪个容器，也不知道容器内有多少个元素。

youdao