正直角三角 int n = 1; int i = 0; Console.WriteLine("循环次数："); int nums = Convert.ToInt32(Console.ReadLine()); for (i=0;i<nums ;i++){ for (n=1;n<=2*i+1;n++){ Console .Write( "*"); } Console .WriteLine(); } Console.ReadKey();倒直角三角形 int n,i; Console.WriteLine("循环次数："); int nums = Convert.ToInt32(Console.ReadLine()); for (i=nums;i>0 ;i--){ for (n = i; n>0; n--) { Console .Write( "*"); } Console .WriteLine(); } Console.ReadKey();
