圆月山庄资源网 Design By www.vgjia.com
一、自定义分页
1、基础版自定义分页
data = [] for i in range(1, 302): tmp = {"id": i, "name": "alex-{}".format(i)} data.append(tmp) print(data) def user_list(request): # user_list = data[0:10] # user_list = data[10:20] try: current_page = int(request.GET.get("page")) except Exception as e: current_page = 1 per_page = 10 # 数据总条数 total_count = len(data) # 总页码 total_page, more = divmod(total_count, per_page) if more: total_page += 1 # 页面最多显示多少个页码 max_show = 11 half_show = int((max_show-1)/2) if current_page <= half_show: show_start = 1 show_end = max_show else: if current_page + half_show >= total_page: show_start = total_page - max_show show_end = total_page else: show_start = current_page - half_show show_end = current_page + half_show # 数据库中获取数据 data_start = (current_page - 1) * per_page data_end = current_page * per_page user_list = data[data_start:data_end] # 生成页面上显示的页码 page_html_list = [] # 加首页 first_li = '<li><a href="/user_list/" rel="external nofollow" >首页</a></li>' page_html_list.append(first_li) # 加上一页 if current_page == 1: prev_li = '<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >上一页</a></li>' else: prev_li = '<li><a href="/user_list/" rel="external nofollow" rel="external nofollow" rel="external nofollow" >上一页</a></li>'.format(current_page - 1) page_html_list.append(prev_li) for i in range(show_start, show_end+1): if i == current_page: li_tag = '<li class="active"><a href="/user_list/" rel="external nofollow" rel="external nofollow" >{0}</a></li>'.format(i) else: li_tag = '<li><a href="/user_list/" rel="external nofollow" rel="external nofollow" >{0}</a></li>'.format(i) page_html_list.append(li_tag) # 加下一页 if current_page == total_page: next_li = '<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下一页</a></li>' else: next_li = '<li><a href="/user_list/" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下一页</a></li>'.format(current_page+1) page_html_list.append(next_li) # 加尾页 page_end_li = '<li><a href="/user_list/" rel="external nofollow" rel="external nofollow" rel="external nofollow" >尾页</a></li>'.format(total_page) page_html_list.append(page_end_li) page_html = "".join(page_html_list) return render(request, "user_list.html", {"user_list": user_list, "page_html": page_html})
2、封装保存版
class Pagination(object): def __init__(self, current_page, total_count, base_url, per_page=10, max_show=11): """ :param current_page: 当前页 :param total_count: 数据库中数据总数 :param per_page: 每页显示多少条数据 :param max_show: 最多显示多少页 """ try: current_page = int(current_page) except Exception as e: current_page = 1 self.current_page = current_page self.total_count = total_count self.base_url = base_url self.per_page = per_page self.max_show = max_show # 总页码 total_page, more = divmod(total_count, per_page) if more: total_page += 1 half_show = int((max_show - 1) / 2) self.half_show = half_show self.total_page = total_page @property def start(self): return (self.current_page - 1) * self.per_page @property def end(self): return self.current_page * self.per_page def page_html(self): if self.current_page <= self.half_show: show_start = 1 show_end = self.max_show else: if self.current_page + self.half_show >= self.total_page: show_start = self.total_page - self.max_show show_end = self.total_page else: show_start = self.current_page - self.half_show show_end = self.current_page + self.half_show # 生成页面上显示的页码 page_html_list = [] # 加首页 first_li = '<li><a href="{}" rel="external nofollow" >首页</a></li>'.format(self.base_url) page_html_list.append(first_li) # 加上一页 if self.current_page == 1: prev_li = '<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >上一页</a></li>' else: prev_li = '<li><a href="{0}" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >上一页</a></li>'.format(self.base_url, self.current_page - 1) page_html_list.append(prev_li) for i in range(show_start, show_end + 1): if i == self.current_page: li_tag = '<li class="active"><a href="{0}" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >{1}</a></li>'.format(self.base_url, i) else: li_tag = '<li><a href="{0}" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >{1}</a></li>'.format(self.base_url, i) page_html_list.append(li_tag) # 加下一页 if self.current_page == self.total_page: next_li = '<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下一页</a></li>' else: next_li = '<li><a href="{0}" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下一页</a></li>'.format(self.base_url, self.current_page + 1) page_html_list.append(next_li) # 加尾页 page_end_li = '<li><a href="{0}" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >尾页</a></li>'.format(self.base_url, self.total_page) page_html_list.append(page_end_li) return "".join(page_html_list)
3、封装保存版使用指南
def user_list(request): pager = Pagination(request.GET.get("page"), len(data), request.path_info) user_list = data[pager.start:pager.end] page_html = pager.page_html() return render(request, "user_list.html", {"user_list": user_list, "page_html": page_html})
二、Django内置分页
1、内置分页view部分
from django.shortcuts import render from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger L = [] for i in range(999): L.append(i) def index(request): current_page = request.GET.get('p') paginator = Paginator(L, 10) # per_page: 每页显示条目数量 # count: 数据总个数 # num_pages:总页数 # page_range:总页数的索引范围,如: (1,10),(1,200) # page: page对象 try: posts = paginator.page(current_page) # has_next 是否有下一页 # next_page_number 下一页页码 # has_previous 是否有上一页 # previous_page_number 上一页页码 # object_list 分页之后的数据列表 # number 当前页 # paginator paginator对象 except PageNotAnInteger: posts = paginator.page(1) except EmptyPage: posts = paginator.page(paginator.num_pages) return render(request, 'index.html', {'posts': posts})
2、内置分页HTML部分
<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> </head> <body> <ul> {% for item in posts %} <li>{{ item }}</li> {% endfor %} </ul> <div class="pagination"> <span class="step-links"> {% if posts.has_previous %} <a href="" rel="external nofollow" >Previous</a> {% endif %} <span class="current"> Page {{ posts.number }} of {{ posts.paginator.num_pages }}. </span> {% if posts.has_next %} <a href="" rel="external nofollow" >Next</a> {% endif %} </span> </div> </body> </html>
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
圆月山庄资源网 Design By www.vgjia.com
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圆月山庄资源网 Design By www.vgjia.com
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稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!
昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。
这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。
而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?
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