#include
using namespace std;
class CPU
{
CPU(int c=1);
};
class RAM
{
RAM(int ram=2);
};
class CDROM
{
CDROM(int cdrom=3);
};
class Computer
{
public:
Computer(CPU c,RAM r,CDROM d);
~Computer();
void run()
{
cout<<"cpu为:"<<cpu<<" "<<"ram为:"<<ram<<" "<<"cdrom为:"<<cdrom<<endl;
cout<<"调用的是这个run函数"<<endl;
}
void stop()
{
cout<<"调用的是这个stop函数"<<endl;
}
private:
CPU cpu;
RAM ram;
CDROM cdrom;
};
Computer::Computer(CPU c,RAM r,CDROM d):cpu(c),ram(r),cdrom(d)
{
cout<<"调用的是构造函数"<<endl;
}
Computer::~Computer()
{
cout<<"调用的是该析构函数"<<endl;
}
int main()
{
Computer thing();
thing.run();
thing.stop();
return 0;
}
菜鸟的提问:关于C++类的组合的疑问,我这串代码哪儿错了
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1条回答 默认 最新
- threenewbee 2018-12-30 15:44关注
如果问题得到解决,请点我回答左上角的采纳和向上的箭头,谢谢
#include <iostream> using namespace std; class CPU { private: int val; public: CPU(int c = 1) { val = c; } friend ostream& operator << (ostream& output, CPU& c) { output << "CPU" << c.val; return output; } }; class RAM { private: int val; public: RAM(int ram = 2) { val = ram; } friend ostream& operator << (ostream& output, RAM& r) { output << "RAM" << r.val; return output; } }; class CDROM { private: int val; public: CDROM(int cdrom = 3) { val = cdrom; } friend ostream& operator << (ostream& output, CDROM& c) { output << "CDROM" << c.val; return output; } }; class Computer { public: Computer(CPU c, RAM r, CDROM d); ~Computer(); void run() { cout << "cpu为:" << cpu << " " << "ram为:" << ram << " " << "cdrom为:" << cdrom << endl; cout << "调用的是这个run函数" << endl; } void stop() { cout << "调用的是这个stop函数" << endl; } private: CPU cpu; RAM ram; CDROM cdrom; }; Computer::Computer(CPU c, RAM r, CDROM d) :cpu(c), ram(r), cdrom(d) { cout << "调用的是构造函数" << endl; } Computer::~Computer() { cout << "调用的是该析构函数" << endl; } int main() { CPU c; RAM r; CDROM cd; Computer thing(c, r, cd); thing.run(); thing.stop(); return 0; }
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