命令行程序。在dos命令行中启动和运行。输入“最小化”最小化，“退出”退出程序。只是框架，更多功能请自便。-It s a java program which should be started and running in dos command line。input "退出"to exit,and "最小化"to iconify.It s just a frame that only surpport those two words,other words to be added by yo