HTML代码

    
            
        
            
图书列表
    
          {% for book in book_list %}        
    {% endfor %}    
         
          
               
ID
               
名字
               
出版社
               
价格
          
         
         
      
                   
{
   { book.id }}
                   
{
   { book.title }}
                   
                {
   { book.publisher.name }}            
                   
{
   { book.price }}
              
     
    
{#重点位置#}
    

Python 代码

def book_list(request):    # 每一页显示数量    per_page = 7    # 总数据    total_count = models.Book.objects.all().count()    # 总共需要多少页显示数据    total_page, m = divmod(total_count, per_page)    if m:        total_page += 1    # 从URL中取参数,当没有page时，page_num为1，当page_num大于总页数时，赋于最后一页，当page为字符时，异常出错时，为1值    try:        page_num = request.GET.get("page")        page_num = int(page_num)        if page_num > total_page:            page_num = total_page        elif page_num < 1:            page_num =1    except Exception as e:        page_num = 1    #定义两个变量，截取数据    data_start = (page_num-1)*per_page    data_end = page_num*per_page    #页面上总共展示多少页面    max_page =11    if total_page < max_page:        max_page = total_page    half_max_page = max_page//2    #结果为5，即左右各5页    # 页面上展示的面码从那儿结束    page_end = page_num + half_max_page    #页面上展示的页码从那儿开始    page_start = page_num - half_max_page    #如果当前面减一半比1还小    if page_start <= 1:        page_start = 1        page_end = max_page    #如果当前页大于总页数    if page_end >= total_page:        page_end = total_page        page_start = total_page-max_page+1    #在后台拼接分页的html    html_str_list = []    for i in range(page_start, page_end+1):        #为当前加一个active样式        if i == page_num:            tmp = '
{0}
'.format(i)        else:            tmp = '
{0}
'.format(i)        html_str_list.append(tmp)    #将所有li的html文件拼接连接成一块    page_html = "".join(html_str_list)    #print(page_html)    all_book = models.Book.objects.all()[data_start:data_end]    return render(request,"book.html",{"book_list":all_book,"page_html":page_html,"total_page":total_page})

展示效果