+name String +age:int+student:student+studentClothes:Clothes
+name:string
+Clothes（）
+AAA(AA)-set(AA) : void
文本
cloth
park
+Car(wheel wheel)-set(wheel(wheell wheell))move ( ): void
student
car
+color:+cloth:Cloth
wheel
AAA
+say():void
clothes
+park:park+wheel:wheel
persen
+car : car
+A
+study() ; void+studycar(Car car):void
