C++：vector 排序

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vector内存元素排序方式：

#include <opencv2/opencv.hpp>
#include <iostream>

#pragma comment(lib,"opencv_world341.lib")

using namespace cv;
using namespace std;
int main()
{
	vector<Point2f> pts_v{ Point2f(100,200),Point2f(300,150),Point2f(200,400) };
	sort(pts_v.begin(), pts_v.end(), 
            [](Point2f pts1, Point2f pts2) {return pts1.x < pts2.x; });
	cout << pts_v << endl;

	return 0;
}


//
vector<Rect> temp;
std::sort(temp.begin(), temp.end(), 
          [](Rect& rect1, Rect& rect2) { return rect1.x < rect2.x; }
         );