for () statement-Print Triangle

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 + +)

{

Console.Write ("☆");

}

Console.WriteLine ();

}

2.

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 = a-i; J >= 0; j--)

{

Console.Write ("☆");

}

Console.WriteLine ();

}

3.

Console.Write ("Please enter a few lines to print:");

int a = Convert.ToInt32 (Console.ReadLine ());

for (int i = 0; i < A; i++)

{

for (int j = 1; J <= A-(i + 1); J + +)

{

Console.Write ("");

}

for (int k = 1; k <= i + 1; k++)

{

Console.Write ("☆");

}

Console.WriteLine ();

}

4.

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 = 0; J <= I-2; j + +)

{

Console.Write ("");

}

for (int k = 0; k <= a-i; k++)

{

Console.Write ("☆");

}

Console.WriteLine ();

}

4.

Console.Write ("Please enter a few lines to print:");

int a = Convert.ToInt32 (Console.ReadLine ());

for (int i = 1; i <= A; i++)

{

for (int k = 1; k <= a-i; k++)

{

Console.Write ("");

}

for (int x = 1; <= i*2-1; x + +)

{

Console.Write ("☆");

}

Console.WriteLine ();

}

for (int j = 1; j < A; J + +)

{

for (int k2 = 1; K2 <= J; k2++)

{

Console.Write ("");

}

for (int x2 = 1; x2 <= (A-j) *2-1; x2++)

{

Console.Write ("★");

}

Console.WriteLine ();

}

for () statement-Print Triangle