django 笔记9 分页知识整理

感谢老男孩
自定义分页
    XSS:攻击 默认字符串返回

        {{page_str|safe}}  前端

        from django.utils.safestring import mark_safe
        page_str = """
            <a href="/user_list/?p=1"></a>
                """
        page_str=mark_safe(page_str)  后端

        当前页:current_page
        总页数:total_count
        每页显示10条数据:per_page_count =
        页码: 11条

        如果:总页数 <
            start_index =
            end_index = 总页数
        else:  //总页数大于11
            当前页 <=
                start_index =
                end_index = 

            else:
                start_index = 当前页-
                end_index = 当前页+ +

                如果 当前 +  > 总页数:
                    end_index = 总页数 +
                    start_index = 总页数 - 

def user_list(request):
    current_page = request.GET.get('p',)
    current_page = int(current_page)
    per_page_count =
    # (current_page-) *
    #current_page *
    start = (current_page - ) * per_page_count
    end = current_page * per_page_count
    data = LIST[start:end]

    from django.utils.safestring import mark_safe
    all_count = len(LIST)
    total_count,y=divmod(all_count,per_page_count)
    if y:
        total_count +=
    page_list = []
    # start_index =
    # end_index = count+
    # start_index = current_page -
    # end_index = current_page + +

    if total_count < :
        start_index =
        end_index = total_count +
    else:
        if current_page <=:
            start_index =
            end_index =
        else:
            start_index = current_page -
            end_index = current_page++
            if (current_page+) >total_count:
                start_index = total_count -
                end_index = total_count+

    for i in range(start_index,end_index):
        if i == current_page:
            temp = '<a class ="page active" href="/user_list/?p=%s">%s</a>' %(i,i)
        else:
            temp = '<a class ="page " href="/user_list/?p=%s">%s</a>' %(i,i)

        page_list.append(temp)
    page_str = "".join(page_list)
    page_str=mark_safe(page_str)
    return render(request,'user_list.html',{'li':data,"page_str":page_str})