1. 下载opencvhttps://github.com/opencv/opencv2. 下载opencv_contribhttps://github.com/opencv/opencv_contrib3. 编译在opencv目录下建立build文件夹，cd build，执行cmake需要打开cuda选项，配置cuda路径cmake -DCMAKE_INSTALL_PREFIX=/home/su

epoll的介绍详细请看 man epoll，或者https://man7.org/linux/man-pages/man7/epoll.7.html或者有人翻译过了https://www.jianshu.com/p/ee381d365a29自己写了个例子测试， 建立两个fifo， 然后传入给epoll， 向fifo中写入字符串。#include <fcntl.h>#include &