Python練習實例23

題目：打印出如下圖案（菱形）:

   *
  ***
 *****
*******
 *****
  ***
   *

#!/usr/bin/python
# -*- coding:UTF-8 -*-
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()