Python Django 简单分页的实现代码解析

本篇文章小编给大家分享一下Python Django 简单分页的实现代码解析，小编觉得挺不错的，现在分享给大家供大家参考，有需要的小伙伴们可以来看看。

models.py：

from django.db import models
class Book(models.Model):
  title = models.CharField(max_length=32)
  def __str__(self):
    return self.title
  class Meta:
    db_table = "books"

批量创建 106 条数据

import os
if __name__ == '__main__':
  os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite3.settings")
  import django
  django.setup()
  from app01 import models
  # 106 个书籍对象
  objs = [models.Book(title="《Python 的故事第{}版》".format(i)) for i in range(116)]
  # 在数据库中批量创建, 10 次一提交
  models.Book.objects.bulk_create(objs, 10)

views.py：

from django.shortcuts import render
from app01 import models 
def book_list(request):
  # 从 URL 中取参数
  page_num = request.GET.get("page")
  print(page_num, type(page_num))
  page_num = int(page_num)
 
  # 定义两个变量保存数据从哪儿取到哪儿
  data_start = (page_num-1)*10
  data_end = page_num*10
 
  # 书籍总数
  total_count = models.Book.objects.all().count()
 
  # 每一页显示多少条数据
  per_page = 10
 
  # 总共需要多少页码来显示
  total_page, m = divmod(total_count, per_page)
  if m:
    total_page += 1 
  all_book = models.Book.objects.all()[data_start:data_end]
 
  # 拼接 html 的分页代码
  html_list = []
  for i in range(1, total_page+1):
    tmp = '
{0}
'.format(i)
    html_list.append(tmp) 
  page_html = "".join(html_list) 
  return render(request, "book_list.html", {"books": all_book, "page_html": page_html})

book_list.html：

  
  
  css/bootstrap.min.css" rel="external nofollow" >

 
 
  
    {% for book in books %}
      
    {% endfor %} 
    

    

    

      
序号
      
id
      
书名
    
    
    

        
{{ forloop.counter }}
        
{{ book.id }}
        
{{ book.title }}
      
  
 
   

运行结果：