Python版
while True: try: n=int(input()) for i in range(1,n+1): for j in range(1,n-i+1): print(' ',end='') for k in range(1,2*i): print('*',end='') print('\r') except: break
while True: try: n=int(input()) for i in range(1,n+1): for j in range(1,n-i+1): print(' ',end='') for k in range(1,2*i): print('*',end='') print('\r') except: break