DJANGO之分页

#coding:utf8#!/usr/bin/env python__author__ = 'sws'from django.utils.html import mark_safeclass PagiInfo:    '''    分页信息    确定每页有几条信息 per_item    确定每页的显示开始的信息序号，以及结束序号    self.Page:当前页    self.Total_count:信息总数目    self.Per_item:每页显示的数目 默认为5    '''    def __init__(self, page, total_count, per_item=5):        self.Page = page        self.Total_count = total_count        self.Per_item = per_item    @property    def start(self):        '''        返回开始的序号        '''        return self.Per_item*(self.Page-1)    @property    def end(self):        '''        返回结束的序号        '''        return self.Per_item*(self.Page)    @property    def total_pages(self):        '''            返回总页数        '''        pages = divmod(self.Total_count,self.Per_item)        if pages[1] != 0:            total_page = pages[0]+1        else:            total_page = pages[0]        return total_pagedef Paginor(page, total_pages):    '''    :param page:  当前页    :param total_pages:  总页数    :return: 分页字符串    '''    if total_pages < 9:        start = 0;        end = total_pages    else:        if page < 5:            start = 0            end = 10        else:            start = page - 5            if page + 4 > total_pages:                end = total_pages            else:                end = page+4    pa_html = ['<a href=/index/1>首页</a>']    if page <= 1:        pa_html.append('<a href=#>前一页</a>')    else:        pa_html.append('<a href=/index/%d>前一页</a>' %(page-1))    for i in range(start+1,end+1):        temp = '<a href=/index/%d>%d</a>' %(i, i)        pa_html.append(temp)    if page >= total_pages:        pa_html.append('<a href=#>后一页</a>')    else:        pa_html.append('<a href=/index/%d>后一页</a>' %(page+1))    pa_html.append('<a href=/index/%d>尾页</a>' %(total_pages+1))    page_string=mark_safe(' '.join(pa_html))    return page_string