<谈ps系列（14）|ps中软件界面讲解
Picture 1 below is on the left side of the software interface. Because it contains many tools， we call it the toolbar. Figure 2 is on the right side of the software interface. It is the attribute window of the corresponding function， which can be docked or detached to form a pop-up window， as shown in Figure 3.
2021最常见的linux网络编程面试题「好文收藏」
推荐视频：支撑互联网的基石tcpip，5个方面全面解析linux多线程之epoll原理剖析与reactor原理及应用1、什么是IO多路复用I/O多路复用的本质是使用select,poll或者epoll函数，挂起进程，当一个或者多个I/O事件发生之后，将控制返回给用户进程。