Python实现冒泡，插入，选择排序简单实例

# -*- coding: cp936 -*-#python插入排序def insertSort(a):  for i in range(len(a)-1):    #print a,i     for j in range(i+1,len(a)):      if a[i]>a[j]:        temp = a[i]        a[i] = a[j]        a[j] = temp  return a#Python的冒泡排序  def bubbleSort(alist):  for passnum in range(len(alist)-1,0,-1):    #print alist,passnum    for i in range(passnum):      if alist[i]>alist[i+1]:        temp = alist[i]        alist[i] = alist[i+1]        alist[i+1] = temp  return alist#Python的选择排序 def selectionSort(alist):  for i in range(len(alist)-1,0,-1):    maxone = 0    for j in range(1,i+1):      if alist[j]>alist[maxone]:        maxone = j    temp = alist[i]     alist[i] = alist[maxone]    alist[maxone] = temp   return alistalist = [54,26,93,17,77,31,44,55,20]#print bubbleSort(alist)alist = [54,26,93,17,77,31,44,55,20]print selectionSort(alist)