django网页的分页功能，大家如果有疑问请留言

from django.contrib import adminfrom django.conf.urls import urlfrom app01 import ?viewsurlpatterns = [ ???url(r‘^user_list‘, views.user_list)]

def user_list(request): ???pagesizenumber = request.COOKIES.get(‘pagesizenumber‘, 10) #获取COOKIE传过来的key(‘pagesizenumber‘), 默认为10 ???current_number = request.GET.get(‘p‘, 1) #获得前端a的？p = 的值,此为当前页码数 ???one_page_number = 11 ?#每页显示的页码数 ???pagefi = pagenation.Page(List, pagesizenumber, current_number, one_page_number) #生成类 ???(show_page, list_page) = pagefi.page_str() ?#返回两个参数 ???return ?render(request, ‘user_list.html‘, {‘show_page‘ : show_page, ‘list_page‘: list_page})

from django.utils.safestring import mark_safeclass Page: ???def __init__(self, List, pagesizenumber, current_number, one_page_number = 11): ???????# List 输入传入的数据, pagesizenumber 每页显示的数据量，current_number 当前页码， one_page_number：每页页码数,默认11 ???????self.pagesizenumber = pagesizenumber ???????self.current_number = current_number ???????self.one_page_number = one_page_number ???????self.List = List ???@property ???def page_number(self): ???????self.one_math_number = int(self.pagesizenumber) ???????page_number, v = divmod(len(self.List), self.one_math_number) ?# page_number 总页码数， 计算所需要的总页码数 ???????return page_number ???@property ???def show_page(self): ???????self.current_number = int(self.current_number) ?#当前页码数 ???????self.one_math_number = int(self.pagesizenumber) ???????page_number, v = divmod(len(self.List), self.one_math_number) ?#计算得需要的总页码数 ???????if v > 0: ???????????page_number += 1 ?# 如果大于1， 页码数+1 ???????show_page = self.List[(self.current_number - 1) * self.one_math_number:self.current_number * self.one_math_number] ?# 显示在页面的数 ???????return show_page ???def page_str(self): ???????list_page = [] ???????self.current_number = int(self.current_number) ???????self.one_math_number = int(self.pagesizenumber) ???????self.one_page_number = int(self.one_page_number) ???????if self.page_number < self.one_page_number: ?# 总页码数小于单页页码数 ???????????start_page = 1 ???????????end_page = int(self.page_number) + 1 ???????else: ?# 总页码数大于单页码数 ???????????if self.current_number <= int((self.one_page_number + 1) / 2): ?# 当前页码 小于 单页页码数中间 ???????????????start_page = 1 ???????????????end_page = int(self.one_page_number) + 1 ???????????????print(start_page) ???????????????print(end_page) ???????????elif self.page_number - int((self.one_page_number - 1) / 2) > self.current_number > int( ???????????????????????????(self.one_page_number + 1) / 2): ?# 当前页码数 大于 单页页码数中间 小于 总页码数-单页页码中间 #开始发生变化 ???????????????start_page = int(self.current_number - ((self.one_page_number) - 1) / 2) ???????????????end_page = int(self.current_number + ((self.one_page_number) + 1) / 2) ???????????else: ???????????????start_page = self.page_number - self.one_page_number ?# 当前页码数大于总页码数-单页页码中间 ???????????????end_page = self.page_number + 1 ???????# 上一页按钮 ???????if self.current_number == 1: ???????????x = ("<a class=‘paging active‘ href=‘#‘>上一页</a>") ???????else: ???????????x = ("<a class=‘paging active‘ href=‘/user_list/?p=%s‘>上一页</a>" % (self.current_number - 1,)) ???????list_page.append(x) ???????# 添加a标签 ???????for i in range(start_page, end_page): ???????????if i == self.current_number: ???????????????x = ("<a class=‘paging active‘ href=‘/user_list/?p=%s‘>%s</a>" % (i, i)) ???????????else: ???????????????x = ("<a class=‘paging‘ href=‘/user_list/?p=%s‘>%s</a>" % (i, i)) ???????????list_page.append(x) ???????# 下一页按钮 ???????if self.current_number == self.page_number: ???????????x = ("<a class=‘paging active‘ href=‘#‘>下一页</a>") ???????else: ???????????x = ("<a class=‘paging active‘ href=‘/user_list/?p=%s‘>下一页</a>" % (self.current_number + 1,)) ???????list_page.append(x) ???????x = ‘‘‘ ???????????????<input ?type="text"><a onclick = ‘jumpTo(this, "/user_list/?p=")‘;>Go</a> ???????????????<script> ???????????????????function jumpTo(ths, base){ ?????????????????????var val = ths.previousSibling.value; ????????????????????????location.href = base + val; ???????????????????} ???????????????</script> ???????????????‘‘‘ ???????# ths.previousSibling.value 找出在其上面的input的value值 ???????# location.href = base + val ??跳转 ???????# x = ‘‘‘ ???????# <input type=‘text‘ ><a onclick=‘jumpTo(this, "/user_list/?p=")‘;>Go</a> ???????# <script> ???????# ????function jumpTo(ths,base){ ???????# ????????var val = ths.previousSibling.value; ???????# ????????location.href = base + val; ???????# ?????} ???????# </script> ???????# ????‘‘‘ ???????list_page.append(x) ???????list_page = ‘‘.join(list_page) ???????print(list_page) ???????list_page = mark_safe(list_page) ???????return self.show_page, list_page

<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>Title</title> ???<style> ???????.pagination .paging{ ???????????padding: 5px; ???????????margin: 5px; ???????????background-color: aqua; ???????????color: white; ???????} ???????.pagination .paging.active{ ???????????background-color: red; ???????????color: white; ???????} ???</style></head><body> ????<ul> ????????{% for i in show_page %} ????????????<li>{{ i }}</li> ????????{% endfor %} ????</ul>{# ????{% for i in list_page %}#}{# ???????<a class=‘paging‘ href="/user_list/?p={{ i }}">{{ i }}</a>#}{# ????{% endfor %}#} ????<div class = pagination> ??????{{ list_page }} ????</div>{# ????onchange 检测改变#} ????<select id = ‘i1‘ onchange="changePageSize(this)"> ????????<option value="10">10</option> ????????<option value="30">30</option> ????????<option value="50">50</option> ????????<option value="100">100</option> ????</select><script src = ‘/static/jquery-3.3.1.js‘></script><script src="/static/jquery.cookie.js"></script><script>{# ???文件一进来就执行该操作, 获得pagesizenumber值，改变values， 初始值为10#} ???$(function () { ???????var v = $.cookie(‘pagesizenumber‘); ???????if (v){$(‘#i1‘).val(v);} ???????else{$(‘#i1‘).val(10)} ???}); ???function changePageSize(ths) { ???????var v = $(ths).val(); ???????$.cookie(‘pagesizenumber‘, v, {path:‘/user_list/‘}); ???????location.reload();{# ???????刷新实现跳转#} ???}</script></body></html>