操作系统的先来先服务算法，java编写，命令行运行，有界面，可以安装jdk_1_5_0_04，不过需要path处设置好环境变量。-the first operating system to first serve algorithm, java preparation, command line operation, interface, jdk_1_5_0_04 can be installed, but it needs to install a good path environment