九九乘法表

using System;
public class ChengFaBiao
{
public static void Main()
{
Console.WriteLine ("jiu jiu cheng fa biao");
for(int x=1;x<=9;x++)
{
for(int y=1;y<=x;y++)
{
Console.Write ("{0}*{1}={2}\t",x,y,x*y);
}
Console.WriteLine ();
}
}
}