乘法表

 1 {
 2              int x=1;int y=x, z=x*y;
 3              for (x = 1; x <= 9; x++)
 4              {
 5                  for (y = 1; y <= x; y++)
 6                  {
 7                      z = x * y;
 8                      Console.Write("z=x*y ", y, x, x*y);
 9                  }
10                 Console.WriteLine ("\n");
11                 
12              }
13              Console.ReadLine();
14         }