分页函数未封装源码

size = 每页展示的条数。

plus=当前页展示的前几页后几页一起展示。

from django.utils.safestring import mark_safe

def numlist(request):
    # for i in range(1,100):
    #     a = "1804539"+str(random.randint(1000,9999))
    #     models.prettyNum.objects.create(mobile= a,price=998, level=1,status=1)

    search_dic = {}
    search = request.GET.get("query",'')
    if search:
        search_dic["mo5bile__contains"]= search
    queryset = models.prettyNum.objects.filter(**search_dic)



"""分页逻辑"""
    page= int(request.GET.get("page",1))
    size =10
    start =(page-1)*size+1
    end = page*size +1
    queryset = models.prettyNum.objects.all()[start:end]#核心所在
    total_count = models.prettyNum.objects.all().count()#计算一共有多少条数据
    total_page,div = divmod(total_count,size)#计算一共可以分几页
    if div:
        total_page += 1
    plus= 5
    if total_page <= 2*plus+1:
        start_page = 1
        end_page=total_page
    else:
        if page-plus<=1:
            start_page = 1
            end_page = 2*plus+1
        else:
            if page+plus>=total_page:
                start_page = total_page-2*plus
                end_page = total_page
            else:
                start_page=page-plus
                end_page =page+plus
    page_str_list =[]
    """首页"""
    page_str_list.append("<li><a href='?page={}'>首页</a></li>".format(1))
    """上一页"""
    if page-1 <= 0:
      pre ='''<li>
                            <a href="?page={}" aria-label="Previous">
                                <span aria-hidden="true">&laquo;</span>
                            </a>
                        </li>'''.format(1)
    else:
        pre = '''<li>
                                  <a href="?page={}" aria-label="Previous">
                                      <span aria-hidden="true">&laquo;</span>
                                  </a>
                              </li>'''.format(page-1)
    page_str_list.append(pre)
    for i in range(start_page,end_page+1):#控制显示分页标签的数量
        if page == i:
            ele = '<li class="active"><a href="?page={}">{}</a></li>'.format(i,i)
        else:
            ele = '<li ><a href="?page={}">{}</a></li>'.format(i, i)
        page_str_list.append(ele)
    """下一页"""
    if page +1 >=total_page:
        post = '''<li>
                            <a href="?page={}" aria-label="Next">
                                <span aria-hidden="true">&raquo;</span>
                            </a>
                        </li>'''.format(total_page)
    else:
        post = '''<li>
                                   <a href="?page={}" aria-label="Next">
                                       <span aria-hidden="true">&raquo;</span>
                                   </a>
                               </li>'''.format(page+1)
    page_str_list.append(post)
    """尾页"""
    page_str_list.append("<li><a href='?page={}'>尾页</a></li>".format(total_page))
    page_str = mark_safe("".join(page_str_list))


    return render(request,"numlist.html", {"queryset":queryset,"q":search,"page_str":page_str}

前端应用

<div class="text-center">
                <nav aria-label="Page navigation">
                    <ul class="pagination">

                        {{ page_str }}

                    </ul>
                </nav>
</div>