以下展示了随机1~10的代码：

#include <iostream>
#include <cstdlib>  
#include <ctime>    
using namespace std;
int main() {
	srand(time(0));
    int n;
    cin>>n;
	n=(unsigned)rand()%10;
    cout<<n;
    return 0;
}

更好的随机数:

#include<bits/stdc++.h>
#include<random>
using namespace std;
int main() {
	srand(unsigned(time(0)));
    random_device rd;
    mt19937 gen(rd());
    uniform_int_distribution<int> dist(1, 100);
    for(int i=1;i<=10;i++)cout<<(dist(gen)+rand())%100<<" ";
    return 0;
}