UML类图

Course

+ courseID:String+ courseName:String+ courseNormal:String+ courseClassify:String+ courseDifficulty:String+ courseCover:String+ courseBuy:Number+ courseTeacher:String+ courseHead:String+ courseScore:Number+ courseAttention:Number

Order

+ orderAlready:String+ orderOnt:String+ orderID:String+ orderCourse:String+ orderTime:String

Collect

+ collectID:String+ collectCourse:String

Comment

+ commentContent:String+ commentAffiliation:String+ commentID:String+ commentChapter:String

TakeNotes

+ takenotesID:String+ takenotesContent:String

Note

+ noteContent:String+ noteChapter:String+ noteID:String+ noteTime:String

Chapter

+ chapterID:String+ chapterAbout:String+ chapterAffiliation:String+ chapterTime:String

Score

+ scoreValue:Number+ scoreCourse:String+ scoreID:String

allUsr

+ usrID:Number+ usrName:String+ usrPwd:String+ usrPhone:Number+ usrMail:String+ usrGold:Number+ usrInt:Number+ usrInt:Number+ usrGrade:String