打印空心菱形
'''
* 1 3 1
* * 2 2 3
* * 3 1 5
* * 4 0 7
* * 5 1 5
* * 6 2 3
* 7 3 1
'''
a = int(input("请输入奇数行数："))
if a % 2 == 0:
print("输入数字错误！")
a = int(input("请重新输入奇数行数："))
b = a // 2 + 1
#上半部分
for i in range(0,b+1):
#空格数
space = b - i
for j in range(space):
print(" ",end="")
#星数
star = 2 * i - 1
for k in range(star):#[0,star)
if k == 0 or k == star - 1:
print("*",end="")
else:
print(" ",end="")
#换行
print()
#下半部分
for m in range(b-1,0,-1):
#空格数
space = b - m
for j in range(space):
print(" ",end="")
#星数
star = 2 * m - 1
for k in range(star):
if k == 0 or k == star - 1:
print("*",end="")
else:
print(" ",end="")
#换行
print()
