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