如何将一个类的两个独立实例设置为彼此相等的c++

#include <iostream>

class MyClass {
public:
    int value;

    // 构造函数
    MyClass(int val) : value(val) {}

    // 等号操作符重载
    MyClass& operator=(const MyClass& other) {
        if (this != &other) {
            value = other.value;
        }
        return *this;
    }
};

int main() {
    MyClass obj1(10);
    MyClass obj2(20);

    std::cout << "Before assignment: obj1.value = " << obj1.value << ", obj2.value = " << obj2.value << std::endl;

    obj1 = obj2; // 将obj2的值赋给obj1

    std::cout << "After assignment: obj1.value = " << obj1.value << ", obj2.value = " << obj2.value << std::endl;

    return 0;
}

Before assignment: obj1.value = 10, obj2.value = 20
After assignment: obj1.value = 20, obj2.value = 20