版权声明:chen_zan_yu https://blog.csdn.net/chen_zan_yu_/article/details/89363641
操作符重载写在全局
#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
using namespace std;
class Complex {
public:
Complex(int a, int b) {
this->a = a;
this->b = b;
}
void printComplex() {
cout << "(" << this->a << "," << this->b << ")" << endl;
}
friend Complex &operator++(Complex &c);
private:
int a;
int b;
};
//操作符重载写在全局
Complex &operator++(Complex &c) {
c.a++;
c.b++;
return c;
}
int main() {
Complex c1(1, 2);
++c1;
c1.printComplex();
return 0;
}
操作符重载写在局部
#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
using namespace std;
class Complex {
public:
Complex(int a, int b) {
this->a = a;
this->b = b;
}
void printComplex() {
cout << "(" << this->a << "," << this->b << ")" << endl;
}
Complex &operator++() {
this->a++;
this->b++;
return *this;
}
private:
int a;
int b;
};
int main() {
Complex c1(1, 2);
++++c1;
c1.printComplex();
return 0;
}
操作符重载的是后++运算符 全局
#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
using namespace std;
class Complex {
public:
Complex(int a, int b) {
this->a = a;
this->b = b;
}
void printComplex() {
cout << "(" << this->a << "," << this->b << ")" << endl;
}
friend const Complex operator++(Complex &c1,int);
private:
int a;
int b;
};
//操作符重载的是后++运算符
const Complex operator++(Complex &c1,int) {
Complex temp(c1.a, c1.b);
c1.a++;
c1.b++;
return temp;
}
int main() {
Complex c1(1, 2);
c1++;
c1.printComplex();
return 0;
}
操作符重载的是后++运算符 局部
#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
using namespace std;
class Complex {
public:
Complex(int a, int b) {
this->a = a;
this->b = b;
}
void printComplex() {
cout << "(" << this->a << "," << this->b << ")" << endl;
}
const Complex operator++(int) {
Complex temp(this->a, this->b);
this->a++;
this->b++;
return temp;
}
private:
int a;
int b;
};
int main() {
Complex c1(1, 2);
c1++;
c1.printComplex();
return 0;
}