c# - Creating an isosceles triangle in C3 -

the code below makes right angle triangle, how make isosceles triangle?

int height = 4; string star = ""; (int = 0; int < height; i++) {     star += "*";     console.writeline(star); } console.readline(); 

this displays right angle triangle. attempted make pyramid.

here have cleaner code:

int numberoflayer = 4; int empty; int number; (int = 1; <= numberoflayer; i++) {     (empty = 1; empty <= (numberoflayer - i); empty++)         console.write(" ");     (number = 1; number <= i; number++)         console.write('*');     (number = (i - 1); number >= 1; number--)         console.write('*');     console.writeline(); }