操作符重载.xml

pre{
line-height:1;
color:#1e1e1e;
background-color:#d2d2d2;
font-size:16px;}.sysFunc{color:#627cf6;font-style:italic;font-weight:bold;}
.selfFuc{color:#800080;}
.bool{color:#d2576f;}
.condition{color:#000080;font-weight:bold;}
.key{color:#000080;}
.var{color:#800000;font-style:italic;}
.Digit{color:#ff00ff;font-weight:bold;}
.includePre{color:#1e1e1e;}
.operator {color:#008000;font-weight:bold;}

操作符重载

 
#include <iostream>
#include <string>
using namespace std;
 
//定义水果类
 class Fruit
{
  string name;
  string colour;
public:
         friend istream& operator>>(istream&,Fruit&);                    // 输入流
         friend ostream& operator<<(ostream& out,const Fruit& fruit);       // 输出流
         void print()
         {
                   cout<<colour<<" "<<name<<endl;
         }
 
         Fruit(const string nst="apple",const string cst="green"):name(nst),colour(cst)
         {
         }
 
         ~Fruit()
         {
         }
};
 
 
//重载操作符
ostream& operator<<(ostream& out, const Fruit &s)
{
         out<<s.colour<<" "<<s.name<<endl;
         return out;
 
}
 
istream& operator>>(istream& in,Fruit &s)
{
         in>>s.colour>>s.name;
         if (!in)
         {
                   cerr<<"Wrong input!"<<endl;
         }
         return in;
}
 
 
 

主程序：

         Fruit apple;
         cin>>apple;
         cout<<apple;
 

本文使用 书画小说软件 发布，内容与软件无关，书画小说软件 更惬意的读、更舒心的写、更轻松的发布。