前端小程序数据库区块链人工智能第28页

系统优化---功能优化心得

连错次数及其他边缘信息问题描述当用户答题数据量增大的时候，应该是几千条的时候，每次查询需要5秒左右的响应时间问题分析首先是硬件，由于我们的产品是平板，且设备整体性能比较差；其次，pad本地用的是sqlite数据库不支持变量声明

beiwolide·2024-09-07 04:45

2021福布斯富豪榜前十半数关注比特币和区块链

中本聪结合多位朋克社群的既有想法创造了比特币，其背后的科技和概念并非均为创新，但其利用密码学等控制币的发行和管理的想法带来了创新改变。随着越来越多的组织、群体和个人开始接受比特币，以比特币为代表的加密世界正不断扩大发展。尽管近一个月以来，比特币“四面楚歌”。但多名亿万富翁的目光仍关注在比特币上，相关资产配置中也不乏押注。值得注意的是，在2021年福布斯富豪榜中，就不乏加密的积极研究者。亚马逊杰夫·

Eslacoin艾斯拉量化·2024-09-07 04:21

[Day 68] 區塊鏈與人工智能的聯動應用：理論、技術與實踐

I在製造業中的應用實例在現代製造業中，人工智能（AI）技術已經成為一個強大的工具，極大地提升了生產效率、質量控制和預測能力。

Thetoicxdude·2024-09-07 04:15

MySQL数据库学习笔记，知识点和案例整理，期末三天复习完【简单且详细】

MySQL数据库近三万字学习笔记，超级详细！文章目录MySQL数据库近三万字学习笔记，超级详细！前言一、day1二、day2三、day3前言MySQL数据库知识点和案例总结，非常详细，将近三万字!

编程ID·2024-09-07 03:12

向量数据库对比分析报告

FAISS、Milvus、Weaviate和OpenAIAPI四个工具的对比分析，主要针对是否支持离线、开发难度、debug支持、生态系统以及Python接口等方面。1.FAISS(FacebookAISimilaritySearch)是否支持离线:支持。FAISS是一个离线库，可以部署在本地或服务器上，不需要网络连接。开发难度:中等。FAISS是一个低级别的工具，需要开发者对近似最近邻搜索算法和

大霸王龙·2024-09-07 03:11

计算机毕业设计springboot健身中心前台信息管理系统qotli源码+系统+程序+lw文档+部署

lw文档+部署计算机毕业设计springboot健身中心前台信息管理系统qotli源码+系统+程序+lw文档+部署本源码技术栈：项目架构：B/S架构开发语言：Java语言开发软件：ideaeclipse前端技术

呦呦网络·2024-09-07 03:11

App_data目录----数据库连接字符串的写法

asp.net2.0有一个特殊目录App_data,通常Sqlserver2005express数据文件就放在这个目录，相应的数据库连接串就是：connectionString="……datasource

pmandy·2024-09-07 02:39

基于JAVA家庭记账系统计算机毕业设计源码+系统+mysql数据库+lw文档+部署

基于JAVA家庭记账系统计算机毕业设计源码+系统+mysql数据库+lw文档+部署基于JAVA家庭记账系统计算机毕业设计源码+系统+mysql数据库+lw文档+部署本源码技术栈：项目架构：B/S架构开发语言

丽扬科技·2024-09-07 02:09

【架构】一款永不重复的高性能分布式发号器，实战nginxpdf

零、基本术语发号器：用于生成唯一流水号（也即俗称的唯一ID）的服务系统，称之为发号器一、技术选型UUID优点：能够保证唯一性缺点：（1）完全的时间数据=>性能比较差、比较长、占用空间大、间接导致数据库性能下降

m0_64867839·2024-09-07 02:39

基于JAVA智能推荐二手车交易网站计算机毕业设计源码+系统+数据库+lw文档+部署

光光网络·2024-09-07 02:07

mysql连接oceanbase数据库集群+租户

mysql集成的有连接oceanbase数据库的方式，所以只需要对参数进行修改即可。url:jdbc:mysql://[ip地址]:[端口]/[数据库]?

AE_·2024-09-07 02:36

html如何嵌套页面？标签告诉你答案</h4> </div> <div class="article-excerpt"> web<em>前端</em>全栈资料粉丝福利（面试题、视频、资料笔记、进阶路线）在这里小编首先介绍的是HTML中iframe标签的用法：怎么在一个网页中嵌入另一个网页呢，我们可以用html中的iframe标签搞定 </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> PHP9年架构师<span class="dot">·</span>2024-09-07 02:06 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="newsitem-info clearfix"> <a href="/article/1832120605256806400.htm" ></a> <a target="_blank" href="/article/1832120605256806400.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">Oracle点滴</h4> </div> <div class="article-excerpt"> administrator/administrator3.oracle8.0.5怎幺创建<em>数据库</em>?用orainst。如果有motif界面，可以用ora </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> zwei1121<span class="dot">·</span>2024-09-07 02:06 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/Oracle/1.htm"> Oracle </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/oracle/1.htm"> oracle </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/table/1.htm"> table </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/sql/1.htm"> sql </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%95%B0%E6%8D%AE%E5%BA%93/1.htm"> 数据库 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/session/1.htm"> session </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/user/1.htm"> user </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832117329304055808.htm" ></a> <a target="_blank" href="/article/1832117329304055808.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">释放oracle undo表空间,undo表空间释放</h4> </div> <div class="article-excerpt"> IMPDP工具导入大表(166G)数据时,报undo表空间不能扩展,导入工作失败.手工停止了impdp后,undo表空间存在无法自动释放的故障.本文主要描述如何通过重建undo表空间来手工释放undo表空间.<em>数据库</em>环境的描述 </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> IBEANI<span class="dot">·</span>2024-09-07 02:05 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E9%87%8A%E6%94%BEoracle/1.htm"> 释放oracle </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/undo%E8%A1%A8%E7%A9%BA%E9%97%B4/1.htm"> undo表空间 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832114554105065472.htm" ></a> <a target="_blank" href="/article/1832114554105065472.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">powerdns配置</h4> </div> <div class="article-excerpt"> 系统：centos7组成软件：epel仓库、mariadb<em>数据库</em>、powerdns步骤1：安装epel仓库yum install epel-release.noarch2:安装mariaDByum -y </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> weixin_33701251<span class="dot">·</span>2024-09-07 01:03 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/php/1.htm"> php </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%95%B0%E6%8D%AE%E5%BA%93/1.htm"> 数据库 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E8%BF%90%E7%BB%B4/1.htm"> 运维 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832113670851751936.htm" ></a> <a target="_blank" href="/article/1832113670851751936.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">AI领域常用缩写词</h4> </div> <div class="article-excerpt"> 学习AI的最大收获是英文水平长了长，多认识了几个单词：<em>人工智能</em>（ArtificialIntelligence，AI）通用<em>人工智能</em>（ArtificialGeneralIntelligence,AGI）生成式 </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 大道不孤,众行致远<span class="dot">·</span>2024-09-07 01:33 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%8A%80%E6%9C%AF%E6%9D%82%E8%B0%88/1.htm"> 技术杂谈 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E4%BA%BA%E5%B7%A5%E6%99%BA%E8%83%BD/1.htm"> 人工智能 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832113671346679808.htm" ></a> <a target="_blank" href="/article/1832113671346679808.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">oracle 扩容undo,【案例】Oracle RAC<em>数据库</em>undo使用率较高的解决思路办法</h4> </div> <div class="article-excerpt"> 天萃荷净Oracle研究中心案例分析：运维DBA反映Oracle<em>数据库</em>undo使用较大，结合案例分析undo使用问题。 </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 南门居士-杜锦刚<span class="dot">·</span>2024-09-07 01:33 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/oracle/1.htm"> oracle </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%89%A9%E5%AE%B9undo/1.htm"> 扩容undo </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832110773795647488.htm" ></a> <a target="_blank" href="/article/1832110773795647488.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">MySQL复习笔记</h4> </div> <div class="article-excerpt"> deleteDDL一、表的创建二、删除表三、快速删除表中数据四、约束TCLDCL二、常用命令三、数据处理函数1、常见的单行处理函数2、分组函数(多行处理函数)四、存储引擎五、事务六、索引七、视图八、DBA命令九、<em>数据库</em> </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> new wei<span class="dot">·</span>2024-09-07 01:02 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/java/1.htm"> java </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/mysql/1.htm"> mysql </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832105984995192832.htm" class='news-img' style="background-image:url('http://img.e-com-net.com/image/info8/33c9c5605a6440aa917fc34036bc9535.jpg@!80x60')" ></a> <a target="_blank" href="/article/1832105984995192832.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">sql注入漏洞</h4> </div> <div class="article-excerpt"> 主要原因是程序员在开发用户和<em>数据库</em>交互的系统时没有对用户输入的字符串进行过滤，转义，限制或处理不严谨，导致用户可以通过输入精心构造的字符串去非法获取到<em>数据库</em>中的数据。 </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> mineflame_<span class="dot">·</span>2024-09-07 01:00 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/sql/1.htm"> sql </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832103212283424768.htm" class='news-img' style="background-image:url('http://img.e-com-net.com/image/info8/7f2819de6eb04a5199a88412375b2ab1.jpg@!80x60')" ></a> <a target="_blank" href="/article/1832103212283424768.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">微信<em>小程序</em>垃圾回收的前景方向</h4> </div> <div class="article-excerpt"> 微信<em>小程序</em>凭借其便捷性和广泛的用户基础，在推广垃圾分类与回收方面展现出巨大潜力。 </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> h17711347205<span class="dot">·</span>2024-09-07 01:59 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%BE%AE%E4%BF%A1%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm"> 微信小程序 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm"> 小程序 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%9B%9E%E5%BD%92%E7%AE%97%E6%B3%95/1.htm"> 回归算法 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832103085938405376.htm" ></a> <a target="_blank" href="/article/1832103085938405376.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">Oracle undo表空间爆满的解决</h4> </div> <div class="article-excerpt"> 1.查找<em>数据库</em>的UNDO表空间名,确定当前例程正在使用的UNDO表空间：Showparameterundo_tablespace。 </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 小学生汤米<span class="dot">·</span>2024-09-07 01:29 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/ORACLE/1.htm"> ORACLE </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/ORACLE/1.htm"> ORACLE </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/undo/1.htm"> undo </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E7%A9%BA%E9%97%B4%E6%BB%A1/1.htm"> 空间满 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="newsitem-info clearfix"> <a href="/article/1832101947763683328.htm" ></a> <a target="_blank" href="/article/1832101947763683328.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">undo 表空间满了的处理方法</h4> </div> <div class="article-excerpt"> 在插入数据或者update时，有时会报ora_30036错误，导致数据插入失败，其原因是<em>数据库</em>的undo表空间不足所致，解决undo表空间满的方法有两种。 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> cm_0205<span class="dot">·</span>2024-09-07 01:58 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%95%B0%E6%8D%AE%E5%BA%93/1.htm"> 数据库 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem 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<span class="author pr20"> In_life 在生活<span class="dot">·</span>2024-09-06 21:05 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E4%BD%93%E7%B3%BB%E6%90%AD%E5%BB%BA/1.htm"> 体系搭建 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/mysql/1.htm"> mysql </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832038426065596416.htm" ></a> <a target="_blank" href="/article/1832038426065596416.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">微信<em>小程序</em> 手写签名_<em>小程序</em>手写签名（wepy）</h4> </div> <div class="article-excerpt"> 对于手写签名组件组件晚上有很多种写法，我选择了一种进行了wepy的框架的改造。如果使用wepy框架做手写签名的话可以直接复制下面的代码。这里需要提醒的是：安卓手机和苹果手机有适配性的问题，苹果手机在签名的以后手机将无法进行文档的上下左右的滑动，而安卓手机没有影响。解决这个问题的方法是给canvas给disable-scroll属性绑定一个变量disable-scroll="true"当进行滑动的时 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> weixin_39906245<span class="dot">·</span>2024-09-06 20:33 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%BE%AE%E4%BF%A1%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm"> 微信小程序 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%89%8B%E5%86%99%E7%AD%BE%E5%90%8D/1.htm"> 手写签名 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832038298592309248.htm" ></a> <a target="_blank" href="/article/1832038298592309248.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">微信<em>小程序</em> 手写签名_微信<em>小程序</em>实现手写签字</h4> </div> <div class="article-excerpt"> 无纸化办公，这是老板对我的要求，然而有人现场执法文件全部电子化，只有签字部分让一个搞web的人有点儿头疼，不能为了这个找个人来开发app吧于是想到了<em>小程序</em>，对于一个新接触<em>小程序</em>的人来说还是有挑战性的，因为我第一次写<em>小程序</em> </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> weixin_39710991<span class="dot">·</span>2024-09-06 20:03 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%BE%AE%E4%BF%A1%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm"> 微信小程序 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%89%8B%E5%86%99%E7%AD%BE%E5%90%8D/1.htm"> 手写签名 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832038299670245376.htm" ></a> <a target="_blank" href="/article/1832038299670245376.htm"> <div class="mb5 mt5"> <h4 class="news__item-title mt0">微信<em>小程序</em> 手写签名_你竟然还不知道在微信上就可以手写签名、签文件了~</h4> </div> <div class="article-excerpt"> 为大家推荐一款可以在微信上传送文件，原笔迹手写签字的<em>小程序</em>——好签，只需三步，随时随地轻松签名。1.用<em>小程序</em>打开文件：「好签」<em>小程序</em>支持3种导入文件的方式 </div> </a> <div class="news__item-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> weixin_39857899<span class="dot">·</span>2024-09-06 20:03 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%BE%AE%E4%BF%A1%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm"> 微信小程序 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E6%89%8B%E5%86%99%E7%AD%BE%E5%90%8D/1.htm"> 手写签名 </a> </li> </ul> </div> </div> </div> <div class="news-item streamitem clearfix mt15"> <div class="news__item-info clearfix"> <a href="/article/1832031486543491072.htm" ></a> <a target="_blank" href="/article/1832031486543491072.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">精通SQL Server端口管理：添加与删除监听端口的指南</h4> </div> <div 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href="/article/1832029720938639360.htm" ></a> <a target="_blank" href="/article/1832029720938639360.htm"> <div class="mb5 mt5"> <h4 class="newsitem-title mt0">微信<em>小程序</em>手写签名，使用canvas 2d 丝滑连笔，不卡顿</h4> </div> <div class="article-excerpt"> 最近产品让我写个手写签名，上网百度了一下，基本上快速连笔都很卡，于是自己参考资料重写了一下，体验效果拉满，话不多说上代码。WXML代码重签确认WXSSpage{background-color:#e7e7e7;}.btn{width:100%;display:flex;justify-content:space-around;align-items:center;height:60px;posit </div> </a> <div class="newsitem-meta"> <span class=" votes-operation"> <span class="wrap"> <i class="glyphicon glyphicon-thumbs-up hot"></i> </span> <span class="author pr20"> 無苼<span class="dot">·</span>2024-09-06 20:58 </span> </span> <ul class="taglist--inline inline-block articletitle--tag"> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%BE%AE%E4%BF%A1%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm"> 微信小程序 </a> </li> <li class="tagPopup mb5"> <a class="tag" href="/search/%E5%B0%8F%E7%A8%8B%E5%BA%8F/1.htm"> 小程序 </a> </li> </ul> </div> </div> </div> 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