标签:vector ace and amp 题目 turn 是什么 price time
#include<iostream>
#include<cstdlib>
#include<ctime>
using namespace std;
class Dice{
public:
Dice(int n);
int cast()
{
int number=rand()%sides+1;
return number;
}
private:
int sides;
};
Dice::Dice(int n)
{
sides=n;
}
int main()
{
int x;
float count=0;
cin>>x;
Dice a(40);
for(int times=0;times<=500;times++)
{
srand(times);
int s=a.cast();
if(s==x)
count++;
}
float c=count/500;
cout<<c<<endl;
return 0;
}
#include<string>
#include<vector>
using namespace std;
class Book{
public:
Book(string isbnA,string titleA,float priceA);
void print();
private:
string isbn;
string title;
float price;
};
Book::Book(string isbnA,string titleA,float priceA)
{
isbn=isbnA;
title=titleA;
price=priceA;
}
void Book::print(){
cout<<isbn<<" "<<title<<" "<<price<<endl;
}
int main()
{
vector<Book>books;
string isbn,title;
float price;
int i=0;
while(cin>>isbn>>title>>price){
Book book(isbn,title,price);
i++;
books.push_back(book);
}
for(int k=0;k<i;k++)
{
books[k].print();
}
return 0;
}
#include<string>
using namespace std;
int main()
{
int a=9;
int *p=&a;
cout<<"The value at p:"<<*p;
return 0;
}
#include<iostream>
using namespace std;
int fn1(){
int *p=new int (5);
return *p;
}
int main()
{
int a=fn1();
cout<<"The value of a is:"<<a;
return 0;
}
课本6—18的题目并不清楚哪里错误,new int(5) 不懂是什么意思 程序运行直接出现结果 不明白错误在哪里。
实验3 不会。
标签:vector ace and amp 题目 turn 是什么 price time
原文地址:https://www.cnblogs.com/-Alone/p/9069248.html