里面的元素如果不這么寫，還可以怎么寫？
car?[?]?carForRent={new?passengerCar(1,"奧迪A4",500,4),
new?passengerCar(2,"馬自達(dá)6",400,4),
new?pickUp(3,"皮卡雪6",450,4,2),
new?passengerCar(4,"?金龍?",800,20),
?new?trunk(5,"松花江",400,4),
new?trunk(6,"依維柯",1000,20)};
比如?new?trunk(6,"依維柯",1000,20)如果不直接在這里寫，在子類里寫？怎么寫？括號里的6,"依維柯",1000,20是對象的屬性？
2017-05-19
比如寫成
passengerCar a1=new?passengerCar(1,"奧迪A4",500,4);
passengerCar a2=new?passengerCar(2,"馬自達(dá)6",400,4);
pickUp b1=new?pickUp(3,"皮卡雪6",450,4,2);
passengerCar a3=new?passengerCar(4,"?金龍?",800,20);
trunk c1=new?trunk(5,"松花江",400,4);
trunk c2=new?trunk(6,"依維柯",1000,20);
Car?carForRent[]=[a1,a2,b1,a3,c1,c2];
這么寫對不對？
2017-05-18
太深奧，回答不起