一个关于Vehicle的小程序，带源码，测试可以执行。主要是一个类的继承的练习。-Vehicles

Create a base class called Vehicle that has

•　the manufacturer’s name (type string),

•　number of cylinders in the engine (type int), and

•　owner (type Person, given below).

Define a virtual function Print() to print all the informations of the Vehicle.

Then create a class called Truck that is derive from Vehicle and has additional properties:

the load capacity in tons (type double). Define a Car class that is also derived from the

Vehicle class and has additional properties: bodystyle (type string, e.g. family car, super

car, and concept car).