面向对象继承\.classpath
............\.project
............\.settings\org.eclipse.jdt.core.prefs
............\bin\bao\Vehicle.class
............\...\...\VehicleTest.class
............\...\VehicleandCar\Car.class
............\...\.............\Test.class
............\...\.............\Vehicle.class
............\...\矩形面积\Circle.class
............\...\........\Poly.class
............\...\........\Rectangle.class
............\...\........\Shape.class
............\src\bao\Vehicle.java
............\...\...\VehicleTest.java
............\...\VehicleandCar\Car.java
............\...\.............\Test.java
............\...\.............\Vehicle.java
............\...\矩形面积\Circle.java
............\...\........\Poly.java
............\...\........\Rectangle.java
............\...\........\Shape.java
............\bin\bao
............\...\VehicleandCar
............\...\矩形面积
............\src\bao
............\...\VehicleandCar
............\...\矩形面积
............\.settings
............\bin
............\src
面向对象继承