菱形变形-闪电

'''
闪电

   *
  **
 ***
*******
   ***
   **
   *
'''

n = 7
e = -(n//2)
for i in range(e,1-e):# -3 3
    if i < 0:
        print(abs(i) * ' ' + (4 - abs(i)) *  '*')
    elif i > 0:
        print(3 * ' ' + (4 - i) *  '*')
    else:
        print(7 * '*')

        
for i in range(e, 1-e):
    # 用了两层 三元运算符
    print(abs(i) * ' ' + (4 - abs(i)) *  '*') if i < 0 else (  print(3 * ' ' +(4 - i) *  '*')  if  i > 0 else print( 7 * '*'))