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C++ 的社会繁衍

把 C++ 想象成人类社会。访问权限、继承、友元将无比真实的反应人类社会中的种种关系。一、类内部访问权限+---------+|class | --> 人+---------+|public | --> 你能干啥|protected| --> 你留下啥|private | -->...

DWS层 (三)商品主题商品主题

文章目录商品主题商品主题1)建表语句DROP TABLE IF EXISTS dws_sku_action_daycount;CREATE EXTERNAL TABLE dws_sku_action_daycount( `sku_id` STRING COMMENT 'sku_id', `order_count` BIGINT COMMENT '被下单次数', `order_num` BIGINT COMMENT '被下单件数', `order_activity_c

php title内容,simple_html_dom.php类使用之一:获取标题内容</a> </h3> <div class="article-intro"> php simple html dom 最新版本 1.5 。感觉很容易上手,和phpquery的使用差不多,支持Jquery的选择器的语法,官方也在更新文档也清晰,个人认为应该是一个很好的采集工具。//演示代码1://演示代码1:include 'simple_html_dom.php';$html = file_get_html('http://www.hao123.com/'); // 输入... </div> <div class="article-tag"> <a href="/u/k-p-k_12_u_7_okf2_13__10__27__27_/category/k-p-k_13_u_7_okf2_12__7__22_w.html" class="tag tag-primary">php title内容</a> <span itemprop="date">2023-09-08</span> <span class="hidden-xs" itemprop="likes" title="点赞次数"><i class="fa fa-thumbs-up"></i> 38 点赞</span> <span class="hidden-xs" itemprop="comments"><a href="/article/k-p-k_14_uzo_10_f5_13_jc0.html#comments" target="_blank" title="评论数"><i class="fa fa-comments"></i> 0</a> 评论</span> <span class="hidden-xs" itemprop="views" title="浏览次数"><i class="fa fa-eye"></i> 57 浏览</span> </div> </div> </div> </article> <article class="article-item"> <div class="media"> <div class="media-left"> <a href="/article/k-p-k_14_ujo_6_fy_14_j_14_5.html"> <div class="embed-responsive embed-responsive-4by3 img-zoom"> <img src="/uploads/reation/bcimg2.png" alt="一文详细了解针对蓝牙智能应用的超低功耗无线MCU芯片CC2640"> </div> </a> </div> <div class="media-body"> <h3 class="article-title"> <a href="/article/k-p-k_14_ujo_6_fy_14_j_14_5.html">一文详细了解针对蓝牙智能应用的超低功耗无线MCU芯片CC2640</a> </h3> <div class="article-intro"> CC2640是一款针对蓝牙智能应用的无线MCU。该器件是CC26xx系列低成本、超低功耗、2.4GHzRF器件的成员。极低的有源RF和MCU电流,低功耗模式电流消耗提供出色的BATTERY寿命和允许操作的小硬币电池和能源收集应用。CC2640包含32位ARMCortex-M3,以48MHz作为主处理器和丰富的外设功能集,包括独特的超低功率传感器控制器,非常适合接口EXTER当系统的其余... </div> <div class="article-tag"> <a href="/u/k-p-k_12_u_7_okf2_13__10__27__27_/category/k-p-k_13_u_7_o_26_fw_14__7__26_y.html" class="tag tag-primary">CC2640</a> <span itemprop="date">2023-03-10</span> <span class="hidden-xs" itemprop="likes" title="点赞次数"><i class="fa fa-thumbs-up"></i> 80 点赞</span> <span class="hidden-xs" itemprop="comments"><a href="/article/k-p-k_14_ujo_6_fy_14_j_14_5.html#comments" target="_blank" title="评论数"><i class="fa fa-comments"></i> 1</a> 评论</span> <span class="hidden-xs" itemprop="views" title="浏览次数"><i class="fa fa-eye"></i> 121 浏览</span> </div> </div> </div> </article> </div> <!--@formatter:off--> <!-- S 分页栏 --> <div class="text-center pager"> </div> <!-- E 分页栏 --> <!--@formatter:on--> </div> </div> <div class="col-md-4 col-sm-12"> <div class="article-sidebar"> <!-- S 会员菜单 --> <!--<div class="panel panel-default">--> <!--<div class="panel-body">--> <!--<ul class="nav nav-pills nav-stacked space-nav">--> <!--</ul>--> <!--</div>--> <!--</div>--> <!-- E 会员菜单 --> <!-- S 专栏 --> <div class="panel panel-default hot-article"> <div class="panel-heading"> <h3 class="panel-title">他的专栏</h3> </div> <div class="panel-body"> <div class="media media-number"> <div class="media-body"> <a class="link-dark" href="/u/k-p-k_12_u_7_okf2_13__10__27__27_/category/k-p-k_14_ujocfz_14__23_k_27_.html" title="DOS编程">DOS编程(0)</a> </div> </div> <div class="media media-number"> <div 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