#include<iostream>
using namespace std;
int main()
{
int i,j;
for(i=9;i>0;i--)
{
for(j=9;j>=i;j--)
cout<<i<<"*"<<j<<"="<<i*j<<'/t';
cout<<endl;
}
return 0;
}
反斜线: "\", 试一试 ‘\t'
C和C++完整教程:https://blog.csdn.net/it_xiangqiang/category_10581430.html