学生课程管理系统
................\TestStudent
................\...........\.classpath
................\...........\.project
................\...........\data
................\...........\....\Course.class
................\...........\....\Course.java
................\...........\....\Student.class
................\...........\....\Student.java
................\...........\....\Teacher.class
................\...........\....\Teacher.java
................\...........\manager
................\...........\.......\CourseManager.class
................\...........\.......\CourseManager.java
................\...........\test
................\...........\....\Test.class
................\...........\....\Test.java
................\...........\util
................\...........\....\Constant.class
................\...........\....\Constant.java