作业4.19

<p>#include<iostream>using namespace std;class book{ int qu; int price;public: book(int q,int p) {  qu=q;  price=p; } void print() {  cout<<"qu*price为:"<<qu*price<<endl; }};</p><p>int main(){ book s[5]={book(1,10),book(2,20),book(3,30),book(4,40),book(5,50)}; for(int i=0;i<5;i++) s[i].print(); return 0;}</p>