输入输出运算符重载.cpp

/*
   有一销售人员类Sales，其数据成员有姓名name，身份证号id，年龄age。
   重载输入/输出运算符实现对Sales类数据成员的输入和输出。
 */
#include<iostream>
#include<cstring>
using namespace std;
class Sales{
        private:
                char name[10];
                char id[18];
                int age;
        public:
                Sales(char *Name,char *ID,int Age);

                friend  Sales &operator<<(ostream &os,Sales &s);        //重载输出运算符
                friend  Sales &operator>>(istream &is,Sales &s);        //重载输入运算符
};
Sales::Sales(char *Name,char *ID,int Age) {
        strcpy(name,Name);
        strcpy(id,ID);
        age=Age;
}
Sales& operator<<(ostream &os,Sales &s) {
        os<<s.name<<"\t";                                       //输出姓名
        os<<s.id<<"\t";                                         //输出身份证号
        os<<s.age<<endl;                                        //输出年龄
        return s;
}
Sales &operator>>(istream &is,Sales &s) {
        cout<<"输入雇员的姓名，身份证号，年龄"<<endl;
        is>>s.name>>s.id>>s.age;
        return s;
}
int main(){
        Sales s1("杜康","214198012111711",40);                  //L1
        cout<<s1;                                               //L2
        cout<<endl;                                                     //L3
        cin>>s1;                                                        //L4
        cout<<s1;                                                       //L5
}