#!/usr/bin/python/268840.html">python# -*- coding: utf-8 -*-class SeqList(object):  def __init__(self,maxsize):    self.maxsize = maxsize    self.data = range(maxsize)    self.last = len(self.data) -1  def __getitem__(self, key):    if self.is_empty():      print 'seqlist is empty'      return    elif key<0 or key>self.last:      print 'the given key is Error'      return    else:      return self.data[key]  def __setitem__(self, key, value):    if self.is_empty():      print 'seqlist is empty'      return    elif key<0 or key>self.last:      print 'the given key is Error'      return    else:      self.data[key] = value  def __len__(self):    length = self.last + 1    return length  def getlength(self):    return self.last+1  def clear(self):    self.data = []  def is_empty(self):    if self.last == -1:      return True    else:      return False  def is_full(self):    if self.last == self.maxsize-1:      return True    else:      return False  def getelem(self,index):    if self.is_empty():      print 'seqlist is empty'      return    elif index<0 or index>self.last:      print 'position is error'    else:      return self.data[index]  def getindex(self,elem):    if self.is_empty():      print 'seqlst is empty'      return    else:      for i in range(self.last):        if self.data[i]==elem:          return i  def append(self,elem):    if self.is_empty():      print 'seqlist is empty'      return    else:      self.last +=1      self.data = self.data + [elem]  def insert(self,index,elem):    if self.is_empty():      print 'seqlist is empty'      return    elif index<0 or index> self.last+1:      print 'postion is error'      return    elif index == self.last+1:      self.last+=1      self.data = self.data + [elem]    else:      self.data += [elem]      if index ==0:        for i in self.data[self.last::-1]:          self.data[i+1] = self.data[i]      else:        for i in self.data[self.last:index-1:-1]:          self.data[i+1] = self.data[i]      self.data[index] = elem      self.last+=1      #print self.data  def delete(self,index):    if self.is_empty():      print 'seqlist is empty'      return    elif index<0 or index> self.last+1:      print 'postion is error'      return    elif index == self.last+1:      self.last -= 1      self.data =self.data[:-1]    else:      for i in self.data[:-1]:        if i >= index:          self.data[i] = self.data[i+1]        else:          pass      self.data = self.data[:-1]      self.last -= 1sl = SeqList(5)print sl.datasl.append(5)print sl.datasl.insert(6,10)print sl.datasl.delete(5)print sl.data