# coding=utf-8 # using python2.7 a = [[(i + 1) * (j + 1) if i >= j else ' ' for i in range(9)] for j in range(9)] # 1.forå¾ªç¯ for i in range(9): for j in range(9): print a[i][j], '\t', print '\n' # 2.whileå¾ªç¯ i, j = 0, 0 while i < 9: while j < 9: print a[i][j], '\t', j += 1 print '\n' i += 1 j = 0