c++ STL容器reverse如何使用

1、头文件：如果想要使用reverse的话，必须要使用头文件#include <algorithm>

2、该容器内部的殂翼瑟擀实现：调用了iter_swap实现了元素的互换：template<classBidirectionalIterator>void re即枢潋雳verse (BidirectionalIterator first, BidirectionalIterator last){ while((first!=last)&&(first!=--last)) { std::iter_swap (first,last); ++first; }}

3、该函数的调用语法：void reverse (BidirectionalIterator first, BidirectionalIterator last);

4、参数：BidirectionalIterator first与BidirectionalIterator last分别是一个序列的起点和中点。类型是内嵌的Iterator型。

5、举个代码例子演示：// reverse algorithm example#include <iostream> // std::cout#include <algorithm> // std::reverse#include <vector> // std::vectorint main () { std::vector<int> myvector; // set some values: for (int i=1; i<10; ++i) myvector.push_back(i); // 1 2 3 4 5 6 7 8 9 std::reverse(myvector.begin(),myvector.end()); // 9 8 7 6 5 4 3 2 1 // print out content: std::cout << "myvector contains:"; for (std::vector<int>::iterator it=myvector.begin(); it!=myvector.end(); ++it) std::cout << ' ' << *it; std::cout << '\n'; return 0;}

6、输出结果：myvector contains: 9 8 7 6 5 4 3 2 1