重载指针的operator++

#include <iostream>

class MyPointer {
private:
    int* ptr;

public:
    MyPointer(int* p) : ptr(p) {}

    // 前置自增操作符重载
    MyPointer& operator++() {
        ++(*ptr);
        return *this;
    }

    // 后置自增操作符重载
    MyPointer operator++(int) {
        MyPointer temp = *this;
        ++(*ptr);
        return temp;
    }

    int getValue() {
        return *ptr;
    }
};

int main() {
    int value = 5;
    MyPointer ptr(&value);

    std::cout << "初始值: " << ptr.getValue() << std::endl;

    ++ptr; // 前置自增
    std::cout << "前置自增后的值: " << ptr.getValue() << std::endl;

    ptr++; // 后置自增
    std::cout << "后置自增后的值: " << ptr.getValue() << std::endl;

    return 0;
}