15-07-03 for () statement-Print Triangle

1.

 Console.Write (  Please enter a few lines to print:   " );  int  a = Convert.ToInt32 (            Console.ReadLine ());  for  (int  i = 1 ; I <= A; I++ for  (int  j = 1 ; J <= I; J++  " ☆  "  

2.

Console.Write ("Please enter a few lines to print:"); intA =Convert.ToInt32 (Console.ReadLine ());  for(inti =1; I <= A; i++)            {                 for(intj = a-i; J >=0; j--) {Console.Write ("☆");            } Console.WriteLine (); }

3.

Console.Write ("Please enter a few lines to print:"); intA =Convert.ToInt32 (Console.ReadLine ());  for(inti =0; i < A; i++)            {                 for(intj =1; J <= A-(i +1); J + +) {Console.Write ("  "); }                 for(intK =1; K <= i +1; k++) {Console.Write ("☆");            } Console.WriteLine (); }

4.

Console.Write ("Please enter a few lines to print:"); intA =Convert.ToInt32 (Console.ReadLine ());  for(inti =1; I <= A; i++)            {                 for(intj =0; J <= I-2; J + +) {Console.Write ("  "); }                 for(intK =0; K <= A-i; k++) {Console.Write ("☆");            } Console.WriteLine (); }

15-07-03 for () statement-Print Triangle