如何在map中为自定义类使用insert_or_assign？

#include <map>
#include <iostream>
#include <string>

class MyClass {
public:
    MyClass() : id(0), name("") {}
    MyClass(int i, const std::string& n) : id(i), name(n) {}

    int getId() const { return id; }
    std::string getName() const { return name; }

    // 重载赋值运算符
    MyClass& operator=(const MyClass& other) {
        if (this != &other) {
            id = other.id;
            name = other.name;
        }
        return *this;
    }

private:
    int id;
    std::string name;
};

int main() {
    std::map<int, MyClass> myMap;

    // 插入或更新元素
    myMap.insert_or_assign(1, MyClass(1, "John"));
    myMap.insert_or_assign(2, MyClass(2, "Alice"));
    myMap.insert_or_assign(3, MyClass(3, "Bob"));
    myMap.insert_or_assign(2, MyClass(2, "Alex")); // 更新已有键的值

    // 遍历输出
    for (const auto& pair : myMap) {
        std::cout << "Key: " << pair.first << ", Value: "
                  << pair.second.getId() << " - " << pair.second.getName() << std::endl;
    }

    return 0;
}