这个项目是尚学堂科技java-j2se教学中的第二个教学项目，在此项目中用到了J2SE得知识，是初学j2se朋友练手的小项目。-The project is still school science teaching java-j2se second teaching projects, this project uses a knowledge of J2SE, J2SE Friend is a beginner to practice small-scale projects in hand