C++学习笔记(一)--Sales_item类

#include <iostream>
#include "Sales_item.h"
int main(int argc,char* argv[])
{
Sales_item item1,item2;
std::cin>>item1>>item2;
std::cout<<item1+item2<<std::endl;<span style="color:#FF0000;">//类直接相加</span>
return 0;
}

#include <iostream>
#include "Sales_item.h"
int main(int argc,char* argv[])
{
Sales_item total;
if(std::cin>>total){
Sales_item trans;
while(std::cin>>trans){
if(total.isbn() == trans.isbn()){
total += trans;<span style="color:#FF0000;">//类相加</span>
}else{
std::cout<<total<<std::endl;
total=trans;<span style="color:#FF0000;">//类赋值</span>
}
}
std::cout<<total<<std::endl;
}else{
std::cerr<<"No data"<<std::endl;
return -1;
}
return 0;
}