求编写一个程序，悬赏5点体力。具体请看内容 - 数学建模社区-数学中国

#include<iostream>
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using namespace std;3 m8 s9 v" U. W, T% H/ M
class vehicle
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{
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protected:
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int wheels;
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double weight;
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public:
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vehicle(int wh=0,double we=0):wheels(wh),weight(we){}& z% _* J& J) r) ?9 R- X' O) A( y
int GetWheels(){return wheels;}
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double GetWeight(){return weight;}
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};8 n+ t. @0 X# ?3 Z# N9 o
class car:private vehicle
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{
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int passenger_load;
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car(int wh=0,double we=0,int pa=0):vehicle(wh,we),passenger_load(pa){}
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int GetPassenger_load(){return passenger_load;}; p0 c; Q$ t9 r. c. `. u( w
int Car_GetWheels(){return GetWheels();}
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double Car_GetWeight(){return GetWeight();}5 a3 N5 M4 v2 K6 Y% Z$ U: _0 a
};
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class truck:private vehicle
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{
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int passenger_load;double payload;
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truck(int wh=0,double we=0,int pa=0,double pay=0):vehicle(wh,we),passenger_load(pa),payload(pay){}
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int GetPassenger_load(){return passenger_load;}) L2 ]) {" l8 `3 v
double GetPayload(){return payload;}
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int Truck_GetWheels(){return GetWheels();}4 A) E3 d# ]4 t5 s
double Truck_GetWeight(){return GetWeight();}0 }6 x! M% r) D- Q
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int main()& E, @1 o$ E* ^# w% ]
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vehicle a(4,100);
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cout<<a.GetWheels()<<endl<<a.GetWeight()<<endl;
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car b(4,100,6);
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cout<<b.Car_GetWheels()<<endl<<b.Car_GetWeight()<<endl<<b.GetPassenger_load()<<endl;! K2 e0 k5 E' P1 {5 s
truck c(4,100,50,6);. Y; p/ F j% Z6 ~+ f0 V H
cout<<c.Truck_GetWheels()<<endl<<c.Truck_GetWeight()<<endl<<c.GetPassenger_load()<<endl<<c.GetPayload()<<endl;, x# M2 h" A1 p$ u7 Z
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system("pause");
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return 0;
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}

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