two_frn.cpp

最新推荐文章于 2021-05-25 15:43:37 发布

原创最新推荐文章于 2021-05-25 15:43:37 发布 · 416 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#include #class

T 专栏收录该内容

41 篇文章

订阅专栏

本文提供了一个使用 C++ 编写的类定义示例，该类用于表示地理位置，并展示了如何实现构造函数、成员函数以及运算符重载。具体包括了拷贝赋值运算符、加法运算符的重载实现。

name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"> #include <iostream.h>

class loc
{
int longitude, latitude;
public:
    loc(void) {}                // Used to construct temporaries
    loc (int lg, int lt)
      {
      longitude = lg;
      latitude = lt;
      }

    void show(void)
      {
      cout << longitude << " ";
      cout << latitude << endl;
      }

    loc operator=(loc op2);
    friend loc operator+(loc op1, int op2);   // Friend overloaded
    friend loc operator+(int op1, loc op2);   // Friend overloaded
};

loc loc::operator=(loc op2)
{
longitude = op2.longitude;
latitude = op2.latitude;

return *this;
}

loc operator+(loc op1, int op2)
{
loc temp;

temp.longitude = op1.longitude + op2;
temp.latitude = op1.latitude + op2;

return temp;
}

loc operator+(int op1, loc op2)
{
loc temp;

temp.longitude = op1 + op2.longitude;
temp.latitude = op1 + op2.latitude;

return temp;
}

void main(void)
{
loc ob1(10,20), ob2( 5,30), ob3( 7,14);

ob1.show();
ob2.show();
ob3.show();
ob1 = ob2 + 10;
ob3 = 10 + ob3;
ob1.show();
ob3.show();
}