学生考试成绩分析程序
....................\AddCourse.java
....................\AddIdAndName.java
....................\AddScore.java
....................\AddStudent.java
....................\Caky.java
....................\GradeAnalyse.java
....................\GraphicsAnalyse.java
....................\Histogram.java
....................\HomeWork.java
....................\Query.java
....................\SaveScore.java
....................\ScoreAnalyse.java
....................\ScoreSect.java