代码

#include <iostream>using namespace std;
class cz
{
private:int num1;   //实部int num2;   //虚部
public:cz(){}cz(int a,int b):num1(a),num2(b){}cz(const cz &other):num1(other.num1),num2(other.num2){}~cz(){}const cz operator+(const cz &other)const{cz a;a.num1=this->num1+other.num1;a.num2=this->num2+other.num2;return a;}bool operator==(const cz &other)const{if(this->num1==other.num1&&this->num2==other.num2){return true;}else{return false;}}cz & operator+=(const cz &other){this->num1+=other.num1;this->num2+=other.num2;return *this;}cz & operator ++(){this->num1++;return *this;}const cz operator-(const cz &other)const{cz a;a.num1=this->num1-other.num1;a.num2=this->num2-other.num2;return a;}void show(){if(num2<0){cout<<this->num1<<this->num2<<"j"<<endl;}else{cout<<num1<<"+"<<num2<<"j"<<endl;}}
};
int main()
{cz a1(1,-1);a1.show();cz a2(1,2);a2.show();a1+=a2;a1.show();a1=a1+a2;a1.show();a1=a1-a2;a1.show();++a1;a1.show();return 0;
}

效果图