用*打印平行四边形

line = int(input('输入数字'))
row = line
while l < line  :
	i = l
	while i - 1 > 0: 
		print(' ', end = '')
		i -= 1
	r = row
	while r > 0: 
		print('*', end = '')
		r -= 1
	print('')
	l += 1