openCV 显示图片

#include "opencv2/core.hpp"
#include "opencv2/highgui.hpp"
#include "opencv2/imgproc.hpp"
#include "opencv2/videoio.hpp"
#include 

using namespace std;
using namespace cv;

int main(int argc, char **argv)
{
    if (argc < 1)
    {
        cout << "argc less 1"<