主要讲述windows下的Qt Creator下载、安装和最简单程序的编写，然后在附录里又讲解了两种其他的编写程序的方法。在linux下Qt Creator下载、安装及程序的编写基本与此相同。-Focuses on the windows of Qt Creator download, install and easiest to write the program, and then again in the appendix to explain the method of preparation of the other two programs. Under linux Qt Creator download, install, and write with the same basic procedures.