C++ 面向对象 类成员函数this指针

top = stock1.topval(stock2);

// 轻松使用c++

// 5. 面向对象 this指针， 面向对象的对象指针 完成
#include <iostream>
#include <string>

using namespace std;

class Over {
private:


public:
    int h = 2;
};


class Stock {
private:
    /* data */
    int h;
public:
    Stock(int abc);

    ~Stock();

    int abc();

    Stock &topval(Stock &s);

    Stock &topval1(Over &s);
};

Stock::Stock(int abc) {
    h = abc;
    printf("%d\n", h);
}

Stock::~Stock() {
}

int Stock::abc() {
    this->h = 10;
    printf("%d\n", this->h);
    printf("%d\n", h);
    return 0;
}

Stock &Stock::topval(Stock &s) {
    printf("this-h: %d, s2.h: %d\n", this->h, s.h);
}

Stock &Stock::topval1(Over &s) {
    printf("this-h: %d, s2.h: %d\n", this->h, s.h);
}


int main(int argc, char const *argv[]) {
    Stock s1(123);
    s1.abc();

    Stock s2(222);
    s1.topval(s2);

    Over s3;
    s1.topval1(s3);

    return 0;
}