rows = int(input('请输入菱形边长：\n'))

row = 1

while row <= rows:

  col = 1   # 保证每次内循环col都从1开始，打印前面空格的个数

  while col <= (rows-row): # 这个内层while就是单纯打印空格

    print(' ', end='') # 空格的打印不换行

    col += 1

  print(row * '* ') # 每一行打印完空格后，接着在同一行打印星星，星星个数与行数相等，且打印完星星后print默认换行

  row += 1

 

bottom = rows-1

while bottom > 0:

  col = 1   # 保证每次内循环col都从1开始，打印前面空格的个数

  while bottom+col <= rows:

    print(' ', end='') # 空格的打印不换行

    col += 1

  print(bottom * '* ') # 每一行打印完空格后，接着在同一行打印星星，星星个数与行数相等，且打印完星星后print默认换行

  bottom -= 1

请输入菱形边长：

5

  * 

  * * 

 * * * 

 * * * * 

* * * * * 

 * * * * 

 * * * 

  * * 

  *

s = '*'

for i in range(1, 8, 2):

  print((s * i).center(7))

for i in reversed(range(1, 6, 2)):

  print((s * i).center(7))

  *  

 *** 

 ***** 

*******

 ***** 

 *** 

  *

def stars(n):

  RANGE1 = [2*i+1 for i in range(n)]

  RANGE2 = [2*i+1 for i in range(n)[::-1]][1:]

  RANGE = RANGE1 + RANGE2

  RANGE_1 = [i for i in range(n)[::-1]]

  RANGE_2 = [i for i in range(n)[1:]]

  RANGE_12 = RANGE_1 + RANGE_2

  for i in range(len(RANGE)):

    print (' '*RANGE_12[i] + '*'*RANGE[i])

if __name__ == "__main__":

  stars(5)

  *

  ***

 *****

 *******

*********

 *******

 *****

  ***

  *