9x9乘法表

#include<iostream>
using namespace std;
int main()
{
  for (int i = 1; i <= 9; i++)
  {
    for (int k = 1; k <= i; k++)
    {
      int n = k * i;
      cout << k << "x" << i << "=" << n << '\t';//其中'\t'为制表符
    }
    cout << endl;
  }
  return 0;
}