读取视频文件，读取一帧图像并检测图像中的汽车，使用循环逐帧对图像进行检测-read the videofrequency documents,then detect the cars in the picture,use the cycle to detect the picture.

完成数组排序的cpp源代码，可以完成数组增加，删除，修改，排序等功能的代码-Complete source code cpp sort the array, the array can be done to add, delete, modify, sort code etc.