2011年10月17日
Visitor Pattern (Visitor设计模式)
//java code:interface CarElementVisitor { void visit(Wheel wheel); void visit(Engine engine); void visit(Body body); void visit(Car car);} interface CarElement { void accept(CarElementVisitor visitor); // CarElements have to provide accept().} class Wheel implements CarElement { pr... Read More
posted @ 2011-10-17 14:15 庚武 Views(374) Comments(0) Diggs(0)