def pretty_num_list(request):
    """
        搜索
    """
    search_data = request.GET.get('search_data', '')
    # 接收查詢條件
    search_dict = {}  # 空的話默認(rèn)搜索全部
    if search_data:  # 有搜索要求
        # 向數(shù)據(jù)庫(kù)搜索包含 輸入的號(hào)碼
        search_dict = {
            'mobile_number__contains': search_data,  # 模糊查詢
        }
        # obj_list = models.PrettyNum.objects.filter(mobile_number__contains=search_data)

    """
         分頁(yè) 
     """
    # 用戶傳入page，不傳的話默認(rèn)為1
    page = int(request.GET.get('page', 1))
    page_size = 10  # 每頁(yè)展示10條數(shù)據(jù)
    start = (page - 1) * page_size  # 頭數(shù)據(jù)
    end = page * page_size  # 尾數(shù)據(jù)
    # 數(shù)據(jù)庫(kù)數(shù)據(jù)的總條數(shù) int
    data_count = models.PrettyNum.objects.filter(**search_dict).order_by('-level').count()
    # total_page_count:整數(shù)部分 ，m:余數(shù)部分
    total_page_count, m = divmod(data_count, 10)
    if m > 0:  # 存在余數(shù)
        total_page_count += 1
    # 顯示的頁(yè)數(shù)
    plus = 5
    # 如果總頁(yè)數(shù)不滿11條，則就展示這么多即可
    if total_page_count <= 2 * plus + 1:
        start_page = 1
        end_page = 11
    else:  # 數(shù)據(jù)庫(kù)數(shù)據(jù)比較多>11頁(yè)
        # 當(dāng)前頁(yè)<=5
        if page <= plus:  #
            start_page = 1
            end_page = 2 * plus + 1
        # 當(dāng)前頁(yè)>5
        else:
            # 去除一直往后翻頁(yè)（即使最后幾頁(yè)沒(méi)數(shù)據(jù)）
            if page + plus > total_page_count:
                start_page = total_page_count - plus * 2
                end_page = total_page_count
            else:
                start_page = page - plus
                end_page = page + plus

    # 存字符串
    page_str_list = []

    # 首頁(yè)
    page_str_list.append('<li><a href="/preNumber/list/?page={}" aria-label="Previous"><span aria-hidden="true">首頁(yè)</span></a></li>'.format(1))


    if page > 1:  # 可向上翻頁(yè)
        page_str_list.append(
            '<li><a href="/preNumber/list/?page={}" aria-label="Previous"><span aria-hidden="true">上一頁(yè)</span></a></li>'.format(
                page - 1))
    else:  # 不可向上翻頁(yè)
        page_str_list.append(
            '<li class="disabled"><a href="#" aria-label="Previous"><span aria-hidden="true">上一頁(yè)</span></a></li>')

    # 循環(huán)生成11個(gè)html標(biāo)簽 并格式化
    for i in range(start_page, end_page + 1):  # 前取后不取
        # 標(biāo)記當(dāng)前頁(yè)
        if i == page:
            page_str_list.append(' <li class="active"><a href="/preNumber/list/?page={}">{}</a></li>'.format(i, i))
        else:
            page_str_list.append(' <li><a href="/preNumber/list/?page={}">{}</a></li>'.format(i, i))

    # 向下翻頁(yè)
    if page < total_page_count:  # 可向下翻頁(yè)
        page_str_list.append(
            '<li><a href="/preNumber/list/?page={}" aria-label="Previous"><span aria-hidden="true">下一頁(yè)</span></a></li>'.format(
                page + 1))
    else:  # 不可向下翻頁(yè)
        page_str_list.append(
            '<li class="disabled"><a href="#" aria-label="Previous"><span aria-hidden="true">下一頁(yè) </span></a></li>')

    # 尾頁(yè)
    page_str_list.append(
        '<li><a href="/preNumber/list/?page={}" aria-label="Previous"><span aria-hidden="true">尾頁(yè)</span></a></li>'.format(
            total_page_count))

    # 元素都拼接成一個(gè)長(zhǎng)字符串 ,mark_safe 標(biāo)記這個(gè)字符串是安全的，頁(yè)面才展示他的樣式
    page_str = mark_safe(''.join(page_str_list))

    # select * from app01_PrettyNum order by level desc ; 按level倒序排列 ，大的在前面
    # 一頁(yè)展示10條數(shù)據(jù) ,列表切片處理
    obj_list = models.PrettyNum.objects.filter(**search_dict).order_by('-level')[start:end]  # 傳入字典要加 **
    content = {
        'obj_list': obj_list,
        'search_content': search_data,
        'page_list': page_str,
    }
    return render(request, 'prettyNum_list.html', content)