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;/ t& f6 A! z/ W% O! P
class vehicle, n- I' _6 H! d, \' U
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protected:
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int wheels;6 y9 u- r, {# e0 b% b: Z8 Y
double weight;
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public: Y7 F4 [* g1 c1 [4 o T
vehicle(int wh=0,double we=0):wheels(wh),weight(we){}
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int GetWheels(){return wheels;}
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double GetWeight(){return weight;}1 h2 y4 N) a8 Z- l3 D8 y
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};
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class car:private vehicle' z! ^: F# g$ @5 o' Q7 z% ~! R
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int passenger_load;! m" W. |! A" c- |4 E
public:* @/ X& {- a$ V L$ e
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;}7 Z H5 r& I- Z1 H% g
int Car_GetWheels(){return GetWheels();}' }1 ?# X) p' I6 B- K5 ^. S" f# d
double Car_GetWeight(){return GetWeight();}" j; g4 d" p% a
}; @5 b( s9 p/ m$ D, L
class truck:private vehicle: X# A* t |# n; ~6 E% r O
{
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int passenger_load;double payload; o9 h: a( P% Q% r/ L3 Y
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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;}
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double GetPayload(){return payload;}/ I+ P. s; A- m, S7 v* u4 i3 J/ b4 t
int Truck_GetWheels(){return GetWheels();}
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double Truck_GetWeight(){return GetWeight();}. B k2 V1 J0 K5 z: `- M V P7 {8 K
};
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int main()* P4 `$ M( ]; Z, k# P
{
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vehicle a(4,100);' q1 ]8 h2 e8 x# o5 {$ b
cout<<a.GetWheels()<<endl<<a.GetWeight()<<endl;
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car b(4,100,6);' G! e" U( p% S, A
cout<<b.Car_GetWheels()<<endl<<b.Car_GetWeight()<<endl<<b.GetPassenger_load()<<endl;, v* k( K* n8 z8 {" P
truck c(4,100,50,6);
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cout<<c.Truck_GetWheels()<<endl<<c.Truck_GetWeight()<<endl<<c.GetPassenger_load()<<endl<<c.GetPayload()<<endl; V- x+ E d+ K& M
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system("pause");
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return 0;6 q* U, G# O: A$ C% B' W
}

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