#include<iostream>
using namespace std;
int main()
{int i;for(i=1;i<21;i++){//' '中有1个空格cout<<i<<' '; if(i%2==0) cout<<"叮叮";if(i%3==0) cout<<"当当";if(i%2==0||i%3==0) cout<<endl; } return 0;
}
小学生C++ Scratch源代码(2021.11.11).zip
https://download.csdn.net/download/dllglvzhenfeng/43461153