Daily questions 2019.9.22

# coding=utf-8
"""
打印出如下图案（菱形）:
   *
  ***
 *****
*******
 *****
  ***
   *
"""

from sys import stdout

for i in range(4):
    for j in range(2 - i + 1):
        stdout.write(' ')
    for k in range(2 * i + 1):
        stdout.write('*')
    print("")

for i in range(3):
    for j in range(i + 1):
        stdout.write(' ')
    for k in range(4 - 2 * i + 1):
        stdout.write('*')
    print("")