什么是迭代器，C++?
什么是 C++ 中的迭代器?
What are Iterators in C++?
推荐答案
迭代器是一种遍历对象集合的方式.通常，它们允许您以类似于使用指针访问经典 C 数组的方式顺序访问 STL(标准模板库)容器.要通过迭代器访问对象，您可以像 C 指针一样取消引用它.要访问集合中的下一个对象，请使用增量 (++) 运算符.一些容器有多种迭代器，允许您以不同的方式遍历集合.
Iterators are a way of traversing a collection of objects. Typically, they allow you to access an STL (Standard Template Library) container sequentially in ways similar to accessing a classical C array with a pointer. To access an object through an iterator, you dereference it like a C pointer. To access the next object in a collection, you use the increment (++) operator. Some containers have multiple kinds of iterators that allow you to traverse the collection in different ways.
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