Question

C++问题 C2264函数定义或声明中有错误 C2084函数已有主体

#include<iostream>#include <math.h>using namespace std;enum CPU_Rank{p1=1,p2,p3,p4,p5,p6,p7};class CPU{private: CPU_Rank rank; int frequency; float voltage;public: CPU(CPU_Rank r, int f, float v) { rank = r; frequency = f; voltage = v; cout << "构造了一个CPU！" << endl; } ~CPU() { cout << "析构了一个CPU！" << endl; } CPU_Rank getRank()const { return rank; } int getFrequency()const { return frequency; } float getVoltage()const { return voltage; } void setRank(CPU_Rank r){ rank = r;} void setFrequency(int f) { frequency = f;} void setVoltage(float v) { voltage = v; } void Run() { cout << "CPU开始运行！" << endl; } void Stop() { cout << "CPU停止运行！" << endl; }};class point {private: int x, y;public: point(int xx = 0, int yy = 0) :x(xx), y(yy) {} point(point &t) :x(t.x), y(t.y) { cout << "复制构造函数被调用" << endl; } ~point() {} int getx() {} int gety() {} void show();};void point::show() { cout << "x=" <<x << "y=" << y << endl;}class point1{private: int i_x; int i_y; int i_z;public: point1(); point1(int x, int y, int z); point1(point1 &pt); ~point1(); int getx(); int gety(); int getz();};point1::point1(){ cout << "调用无参构造函数，输入点坐标:\n"; cin >> i_x >> i_y >> i_z;}point1::point1(int x, int y, int z){ cout << "调用有参构造函数\n"; i_x = x; i_y = y; i_z = z;}point1::point1(point1 &pt){ cout << "调用复制构造函数\n"; i_x = pt.i_x; i_y = pt.i_y; i_z = pt.i_z;}point1::~point1(){ cout << "调用析构函数！\n"; }point1::point1(){}int point1::getx() { return i_x; }int point1::gety() { return i_y; }int point1::getz() { return i_z; }int main(){ CPU cpu(p6, 300, 2.8); cpu.Run(); cpu.Stop(); point a(1, 2); point b(a); a.show(); b.show(); cout << a.getx() <<": " << a.gety() << endl; double x, y, z, length; point1 p1; point1 p2(3, 4, 5); point1 p3(p1); x = p2.getx() - p3.getx(); y = p2.gety() - p3.gety(); z = p2.getz() - p3.getz(); length = sqrt(x*x + y*y + z*z); cout << "the length:" << length << endl; return 0;}

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Answer 1

#include <iostream>
#include <math.h>
using namespace std;
enum CPU_Rank{p1=1,p2,p3,p4,p5,p6,p7};
class CPU{
    private: 
    CPU_Rank rank;  
    int frequency;  
    float voltage;
    public:   
    CPU(CPU_Rank r, int f, float v) {    
        rank = r;   
        frequency = f;  
        voltage = v;    
        cout << "构造了一个CPU！" << endl;   
    }  
    ~CPU() { 
        cout << "析构了一个CPU！" << endl; 
    }
    CPU_Rank getRank()const { return rank; }   
    int getFrequency()const { return frequency; }   
    float getVoltage()const { return voltage; } 
    void setRank(CPU_Rank r){ rank = r;}    
    void setFrequency(int f) { frequency = f;}  
    void setVoltage(float v) { voltage = v; }   
    void Run() { cout << "CPU开始运行！" << endl; }  
    void Stop() { cout << "CPU停止运行！" << endl; }
};
class point {
    private:  
        int x, y;
    public:    
        point(int xx = 0, int yy = 0) :x(xx), y(yy) {}  
        point(point &t) :x(t.x), y(t.y) {    
            cout << "复制构造函数被调用" << endl;   
        }   
        ~point() {} 
        int getx() {}   
        int gety() {}   
        void show();
    };
    void point::show() {  
        cout << "x=" <<x << "y=" << y << endl;
    }
    class point1{
        private:    
            int i_x;    
            int i_y;    
            int i_z;
        public: 
            point1(); 
            point1(int x, int y, int z);  
            point1(point1 &pt); 
            ~point1();  
            int getx(); 
            int gety(); 
            int getz();
        };
    point1::point1(){  //AAAA:这里已经定义了无参数的point1构造,下面不需要再重复了
        cout << "调用无参构造函数，输入点坐标:\n";     
        cin >> i_x >> i_y >> i_z;
    }
    point1::point1(int x, int y, int z){ 
        cout << "调用有参构造函数\n";    
        i_x = x;   
        i_y = y; 
        i_z = z;
    }
    point1::point1(point1 &pt){   
        cout << "调用复制构造函数\n";   
        i_x = pt.i_x; 
        i_y = pt.i_y; 
        i_z = pt.i_z;
    }
    point1::~point1(){    
        cout << "调用析构函数！\n";     
    }
    //point1::point1(){}//这个与上面4A处重复,去掉这行就OK了
    int point1::getx() { return i_x; }
    int point1::gety() { return i_y; }
    int point1::getz() { return i_z; }

    int main(){   
        CPU cpu(p6, 300, 2.8);  
        cpu.Run();  
        cpu.Stop();  
        point a(1, 2); 
        point b(a); 
        a.show(); 
        b.show(); 
        cout << a.getx() <<": " << a.gety() << endl;     
        double x, y, z, length;    
        point1 p1;  
        point1 p2(3, 4, 5); 
        point1 p3(p1);  
        x = p2.getx() - p3.getx();  
        y = p2.gety() - p3.gety();  
        z = p2.getz() - p3.getz();  
        length = sqrt(x*x + y*y + z*z); 
        cout << "the length:" << length << endl;    
        return 0;
    }

Answer 2

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