Python 冒泡排序

num = [23,2,3,6,18,9,33,13,24,19]  for j in range(len(num))[::-1]:      for i in range(j):          if (i<len(num)-1):              if (num[i] > num[i+1]):                  temp = num[i]                  del num[i]                  num.insert(i+1, temp)  print num