20191007软件项目管理-类图练习1

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Class

+cnumber int+cname String+class Teacher String+class detecher String

+setcnumber()+addclassteacher()+updateclass teacher()+addclassdeteacher()+updateclassdeteacher()+removeclassdeteacher()+add student()+removestudent()+updatestudent()

Class teacher

+ctnumber int+ctname Stringctblclass int

+seectnumber()+seectname()+seectblclass()

1

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Deputy Headteacher

+dctnumber int+dctname String+dctblgclass int

+seedctnumber()+seedctname()+dctblgclass()

0...1

Grade

+gnumber int+gname String+gtotal int

+setNumber()+addGrade()+deleteGrade()

Student

+snumber+name String+sblclass int