python3 while循环输出多列多行星号*

使用while，完成以下图形的输出

 

i = 1
while i <= 9:
	j = 1
	if i > 5:
		k = 10 - i
	else:
		k = i
	while j <= k:
		print("*", end=" ")#end=" "不换行输出
		j += 1
	print("\n")#换行
	i += 1