c++面向对象程序设计试题和答案(经典题目)

.

{ }

void main() { }

3、(10分)

#include

class vehicle // 定义汽车类 (3分) {

protected:

int wheels; // 车轮数 float weight; // 重量 public:

vehicle(int wheels,float weight); int get_wheels();

word

return b1.weight+c1.weight;

car c1(1000); boat b1(2000);

cout<

float get_weight(); float wheel_load(); void show(); };

class car:public vehicle // 定义小车类 (3分) {

int passenger_load; // 载人数 public:

car(int wheels,float weight,int passengers=4); int get_passengers(); void show(); };

vehicle::vehicle(int wheels1,float weight1) //(1分) {

wheels=wheels1; weight=weight1; }

int vehicle::get_wheels() {

return wheels;

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.

}

float vehicle::get_weight() {

return weight; }

void vehicle::show() (1分) {

cout << \车轮:\个\ cout << \重量:\公斤\ }

car::car(int wheels, float weight, int passengers) :vehicle(wheels, weight) {

passenger_load=passengers; }

int car::get_passengers () {

return passenger_load; }

void car::show()

word

{

cout <<\车型:小车\ vehicle::show();

cout << \载人:\人\ cout << endl; }

void main () {

car car1(4,2000,5); (1分) cout << \输出结果\car1. show (); (1分) }

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