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16个月前

深入分析Java的序列化与反序列化

本篇文章给大家带来了关于java的相关知识,其中主要介绍了关于序列化与反序列化的相关内容,序列化是一
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17个月前

用 Anaconda 安装了一个包,无法在 Python 中导入

问题描述原谅我,但我是 python 新手.我已经使用安装了一个包(theano)conda ins
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17个月前

电子操纵/拦截 WebView 请求和响应

问题描述我想创建一个使用 webview 来显示第 3 方内容的 Electron 应用. I wa
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18个月前

Linux系统信息面板管理工具psdash

Psdash是一款查看Linux系统信息的web面板,和另一款系统监控工具Glances一样,psDash的系统信息的采集也是由psutil完成的。
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18个月前

使用ssh 批量上传文件

上传文件大多数用的是ftp,但是用ftp有一点不好,就是本地和远程的目录要对应,这样就要在多个目录下去切换,这样挺麻烦的,如果不注意的话,很有可能传错。所以想了个办法利用scp来批量上传文件或者目录。
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18个月前

核心交换机中链路聚合、冗余、堆叠、热备份技术介绍

一、链路聚合链路聚合是将两个或更多数据信道结合成一个单个的信道,该信道以一个单个的更高带宽的逻辑链路出现。链路聚合一般用来连接一个或多个带宽需求大的设备,例如连接骨干网络的服务器或服务器群。
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19个月前

wfr转换CSV文件编码.bat

@echo off goto code 注释区 wfr转换CSV文件编码.bat 依山居 18:45
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19个月前

用VBScript实现Zip压缩目录中的所有文件

On Error Resume Next Dim objFSO,sourcepath,targetp
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19个月前

删除oracle当前用户下的所有对象

--.sql脚本 --唯一注意的是下面的f:\dropobj.sql 为操作的.sql; --你的电
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19个月前

SQL导出为Word

Version: SQL Server 7.0/2000 Created by: Alexander
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2年前

XSS测试语句大全

'>='>%3cscript%3ealert('xss')%3c/script%3e
2年前

浅谈SpringCloud之Ribbon详解

一、什么是负载均衡负载均衡:建立在现有网络结构之上,它提供了一种廉价有效透明的方法扩展网络设备和服务器的带宽、增加吞吐量、加强网络数据处理能力、提高网络的灵活性和可用性。现在网站的架构已经从c/s模式转变为b/s...
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2年前

jQuery实现画面的展开、收起和停止

主要用到动画效果中的三个操作("#id").slidedown(3000);//后面的数字表示效果的时长("#id").stop();("#id").slideup(3000);代码如下:12345展开和... </a> </section> <div class="clicks" data-disable="0"> <ul> <li> <span class="support-btn js_support"><i class="support" type="1" dataid="267354"></i><span>0</span></span> </li> <li> <span class="support-btn js_support"><i class="nosupport" type="0" dataid="267354"></i><span>0</span></span> </li> <li> <span class="support-btn show-share"><i dataid="267354"></i><span>0</span></span> </li> <li> <span class="support-btn js_collect"><i class="t-collect " dataid="267354"></i><span>0</span></span> </li> <li> <a href="/b48b/267354.html"><i></i><span>0</span></a> </li> <li> </li> </ul> </div> <div class="space"></div> </section> <section class="conts"> <section class="grid-cont"> <div class="one-title clearfix"> <div class="v-shenhe"></div> <div class="v-pub-time">2年前</div> </div> <p class="f36 conts" style="padding-top: 10px;"> <a href="/b151b/268468.html">利用node 判断打开的是文件 还是 文件夹的实例</a> </p> <a href="/b151b/268468.html">如下所示:varfs=require("fs");//判断打开的是文件还是文件夹varpath="wen.txt";fs.stat(path,function(err,stat){if(err){console.error(err);throwerr;}console.log(stat);console.info(path+"是一个"+stat.isfil... </a> </section> <div class="clicks" data-disable="0"> <ul> <li> <span class="support-btn js_support"><i class="support" type="1" dataid="268468"></i><span>0</span></span> </li> <li> <span class="support-btn js_support"><i class="nosupport" type="0" dataid="268468"></i><span>0</span></span> </li> <li> <span class="support-btn show-share"><i dataid="268468"></i><span>0</span></span> </li> <li> <span class="support-btn js_collect"><i class="t-collect " dataid="268468"></i><span>0</span></span> </li> <li> <a href="/b151b/268468.html"><i></i><span>0</span></a> </li> <li> </li> </ul> </div> <div class="space"></div> </section> <section class="conts"> <section class="grid-cont"> <div class="one-title clearfix"> <div class="v-shenhe"></div> <div class="v-pub-time">2年前</div> </div> <p class="f36 conts" style="padding-top: 10px;"> <a href="/b109b/252787.html">使用Lua编写Web端模板引擎的实例代码分享</a> </p> <a href="/b109b/252787.html">ltemplate.lualocalinsert=table.insertlocalremove=table.removelocalconcat=table.concatlocalformat=string.formatlocalloaded={}localpartten="(.-){#([^#].-[^#])#}()"localcontent={}localcur_content=nilloc... </a> </section> <div class="clicks" data-disable="0"> <ul> <li> <span class="support-btn js_support"><i class="support" type="1" dataid="252787"></i><span>0</span></span> </li> <li> <span class="support-btn js_support"><i class="nosupport" type="0" dataid="252787"></i><span>0</span></span> </li> <li> <span class="support-btn show-share"><i dataid="252787"></i><span>0</span></span> </li> <li> <span class="support-btn js_collect"><i class="t-collect " dataid="252787"></i><span>0</span></span> </li> <li> <a href="/b109b/252787.html"><i></i><span>0</span></a> </li> <li> </li> </ul> </div> <div class="space"></div> </section> <section class="conts"> <section class="grid-cont"> <div class="one-title clearfix"> <div class="v-shenhe"></div> <div class="v-pub-time">2年前</div> </div> <p class="f36 conts" style="padding-top: 10px;"> <a href="/b10b/244985.html">hce hadoop</a> </p> <a href="/b10b/244985.html">Storm用于处理高速、大型数据流的分布式实时计算系统。为Hadoop添加了可靠的实时数据处理功能Spark采用了内存计算。从多迭代批处理出发,允许将数据载入内存作反复查询,此外还融合数据仓库,流处理和图形计算等多种计算... </a> </section> <div class="clicks" data-disable="0"> <ul> <li> <span class="support-btn js_support"><i class="support" type="1" dataid="244985"></i><span>0</span></span> </li> <li> <span class="support-btn js_support"><i class="nosupport" type="0" dataid="244985"></i><span>0</span></span> </li> <li> <span class="support-btn show-share"><i dataid="244985"></i><span>0</span></span> </li> <li> <span class="support-btn js_collect"><i class="t-collect " dataid="244985"></i><span>0</span></span> </li> <li> <a href="/b10b/244985.html"><i></i><span>0</span></a> </li> <li> </li> </ul> </div> <div class="space"></div> </section> <section class="conts"> <section class="grid-cont"> <div class="one-title clearfix"> <div class="v-shenhe"></div> <div class="v-pub-time">3年前</div> </div> <p class="f36 conts" style="padding-top: 10px;"> <a href="/b133b/229949.html">hibernate事务原理</a> </p> <a href="/b133b/229949.html">关于hibernte的工作原理,简单说一下个人浅见:<br/>1.配置好hibernate的配置文件和与类对应的配置文件后,启动服务器<br/>2.服务器通过实例化Configeration对象,读取hibernate.cfg.xml文件的配置内容,并根据相关的需求建好表或者和表建立好映射关系<br/>3.通过实例化的Configeration对象就可以建立sessionFactory实例,进一步,通过sessionFactory实例可以创建session对象<br/>4.得到session之后,便可以对数据库进行增删改查操作了,除了比较复杂的全文搜索外,简单的操作都可以通过hibernate封装好的session内置方法来实现<br/>5.此外,还可以通过事物管理,表的关联来实现较为复杂的数据库设计<br/>优点:hibernate相当于java类和数据库表之间沟通的桥梁,通过这座桥我们就可以做很多事情了<br/>Hibernate是一个开放源代码的对象关系映射框架, </a> </section> <div class="clicks" data-disable="0"> <ul> <li> <span class="support-btn js_support"><i class="support" type="1" dataid="229949"></i><span>0</span></span> </li> <li> <span class="support-btn js_support"><i class="nosupport" type="0" dataid="229949"></i><span>0</span></span> </li> <li> <span class="support-btn show-share"><i dataid="229949"></i><span>0</span></span> </li> <li> <span class="support-btn js_collect"><i class="t-collect " dataid="229949"></i><span>0</span></span> </li> <li> <a href="/b133b/229949.html"><i></i><span>0</span></a> </li> <li> </li> </ul> </div> <div class="space"></div> </section> <section class="conts"> <section class="grid-cont"> <div class="one-title clearfix"> <div class="v-shenhe"></div> <div class="v-pub-time">3年前</div> </div> <p class="f36 conts" style="padding-top: 10px;"> <a href="/b58b/221580.html">sas 求和</a> </p> <a href="/b58b/221580.html">datatest;<br/>infilecardsdlm=',';<br/>inputsite$yearmonthvalue;<br/>cards;<br/>51701,1951,1,10,<br/>51701,1951,2,20,<br/>51701,1951,3,30,<br/>51701,1951,4,40,<br/>51701,1951,5,50,<br/>51701,1951,6,60,<br/>51701,1951,7,70,<br/>51701,1951,8,80,<br/>51701,1951,9,90,<br/>51701,1951,10,10,<br/>51701,1951,11,20,<br/>51701,1951,12,30,<br/>51701,1952,1,10,<br/>51701,1952,2,20,<br/>51701,1952,3,30,<br/>51701,1952,4,40,<br/>51701,1952,5,50,<br/>51701,1952,6,60,<br/>51701,1952,7,70,<br/>51701,1952,8,80,<br/>51701 </a> </section> <div class="clicks" data-disable="0"> <ul> <li> <span class="support-btn js_support"><i class="support" type="1" dataid="221580"></i><span>0</span></span> </li> <li> <span class="support-btn js_support"><i class="nosupport" type="0" dataid="221580"></i><span>0</span></span> </li> <li> <span class="support-btn show-share"><i dataid="221580"></i><span>0</span></span> </li> <li> <span class="support-btn js_collect"><i class="t-collect " dataid="221580"></i><span>0</span></span> </li> <li> <a href="/b58b/221580.html"><i></i><span>0</span></a> </li> <li> </li> </ul> </div> <div class="space"></div> </section> <section class="conts"> <section class="grid-cont"> <div class="one-title clearfix"> <div class="v-shenhe"></div> <div class="v-pub-time">3年前</div> </div> <p class="f36 conts" style="padding-top: 10px;"> <a href="/b162b/218542.html">中国区块链上市公司</a> </p> <a href="/b162b/218542.html">区块链2.0就是把人类的统一语言、经济行为、社会制度乃至生命都写就为一个基础软件协议。统一语将人类各民族自然语言统一为一种低熵值的表达形式并提供了它与计算机语言的接口;人类经济行为、社会制度体系和生命再生机制统称为时间货币系统。区块链2.0既是集成了统一语和时间货币的分布式人工智能操作系统。<br/>1.1国内资本市场区块链发展现状<br/>?国内的区块链的应用探索还处于早期研究阶段,整体上至少落后于国外1-2年。国内先后涌现了多家巨头公司开始布局区块链项目,阿里金融云也透露或提供基于区块链的云服务平台。虽然全球十大区块链投资机构中中国占了三席:国内IDG资本、万向区块链实验室和数贝投资,但是国内的区块链创业项目基本还处于研究设想、小范围试验阶段,少有成型的商业模式。随着中国央行官网表态,称发行数字货币是其战略目标,相信未来国内的资本也将加速投入这一市场。<br/>?<br/>2015年开始国内各地纷纷成立研究联盟,共同推动区块链技术的发展,并努力建立本土标准,像中国区块链应用研究中心、中国区块链研究联盟、深圳区块链研究院。而国内区块链技术的实践项目比较有名的两个是井通科技打造的电子 </a> </section> <div class="clicks" data-disable="0"> <ul> <li> <span class="support-btn js_support"><i class="support" type="1" dataid="218542"></i><span>0</span></span> </li> <li> <span class="support-btn js_support"><i class="nosupport" type="0" dataid="218542"></i><span>0</span></span> </li> <li> <span class="support-btn show-share"><i dataid="218542"></i><span>0</span></span> </li> <li> <span class="support-btn js_collect"><i class="t-collect " dataid="218542"></i><span>0</span></span> </li> <li> <a href="/b162b/218542.html"><i></i><span>0</span></a> </li> <li> </li> </ul> </div> <div class="space"></div> </section> <section class="conts"> <section class="grid-cont"> <div class="one-title clearfix"> <div class="v-shenhe"></div> <div class="v-pub-time">3年前</div> </div> <p class="f36 conts" style="padding-top: 10px;"> <a href="/b42b/226509.html">impala date函数</a> </p> <a href="/b42b/226509.html">5Function<br/>指数据库内置的function,不讨论UDF。另外,操作符都不比较了,区别不大。<br/>5.1数学函数<br/>功能OracleHiveImpala<br/>ABS绝对值,有有有<br/>SIN/SINH/ASIN/COS/COSH/ACOS/TAN/TANH/ATAN/ATAN2<br/>三角函数<br/>其中ATAN2接受两个参数(二维平面中的坐标)e5a48de588b63231313335323631343130323136353331333363376530<br/>没有SINH/COSH/TANH/ATAN2同hive<br/>BITAND按位与,有<br/>CEIL天花板值,有有,还有个别名CEILING有,同hive<br/>EXPe的多少次,有有,还有个函数E()返回e有,同hive<br/>FLOOR地板值,有有有<br/>LN以e为底的 </a> </section> <div class="clicks" data-disable="0"> <ul> <li> <span class="support-btn js_support"><i class="support" type="1" dataid="226509"></i><span>0</span></span> </li> <li> <span class="support-btn js_support"><i class="nosupport" type="0" dataid="226509"></i><span>0</span></span> </li> <li> <span class="support-btn show-share"><i dataid="226509"></i><span>0</span></span> </li> <li> <span class="support-btn js_collect"><i class="t-collect " dataid="226509"></i><span>0</span></span> </li> <li> <a href="/b42b/226509.html"><i></i><span>0</span></a> </li> <li> </li> </ul> </div> <div class="space"></div> </section> </div> <div id="Pager" class="pagination-wrap"><a class="status">1</a>  <a href="/user/405?Page=2">2</a>  <a href="/user/405?Page=3">3</a>  <a href="/user/405?Page=4">4</a>  <a href="/user/405?Page=5">...</a>  <a href="/user/405?Page=2">下一页</a>  </div> </div> </div> <!-- 分享start --> <div class="share-box"> <div class="weui-mask" id="iosMask" style="opacity: 1; display:none;"></div> <div class="weui-actionsheet " id="iosActionsheet"> <div class="weui-actionsheet__title"> <p class="weui-actionsheet__title-text">分享至</p> </div> <div class="weui-actionsheet__menu bdsharebuttonbox fen-cont" data-tag="share_1" data-initialized="true"> <div class="weui-actionsheet__cell"> <div class="share-item"> <a class="bds_weixin weixin"></a> <div class="share-item-text">微信</div> </div> <div class="share-item"> <a class="bds_qzone qzone icon-qzone" href="#"></a> <div class="share-item-text">qq空间</div> </div> <div class="share-item"> <a class="bds_qzone qq icon-qq" href="#"></a> <div class="share-item-text">qq</div> </div> <div class="share-item"> <a class="bds_tsina sina icon-weibo"></a> <div class="share-item-text">微博</div> </div> <div class="share-item"> <input id="copytarget" type="text" value="123"> <button class="i-copy copybtn" data-clipboard-text="" onclick="return false;"></button> <div class="share-item-text">复制</div> </div> </div> <div class="video-list-share-copy"> 长按复制下方链接,去粘贴给好友吧: <div class="video-list-share-copy-link" id="video-list-share-copy-link"> <a class="copy-link" href="" target="_blank"></a> </div> </div> </div> </div> </div> <!-- 投稿栏start --> <div class="publish-box"> <div class="weui-mask" id="publishMask" style="opacity: 1; display:none;"></div> <div class="weui-actionsheet " id="publishActionsheet"> <div class="weui-actionsheet__menu publishbar"> <div class="weui-actionsheet__cell"> <div class="publish-item"> <a class="pf_icon pf-pic" href="/publish?categorycode=b1b"></a> <div class="publish-item-text">软件</div> </div> <div class="publish-item"> <a class="pf_icon pf-pic" href="/publish?categorycode=b2b"></a> <div class="publish-item-text">前端设计</div> </div> <div class="publish-item"> <a class="pf_icon pf-pic" href="/publish?categorycode=b3b"></a> <div class="publish-item-text">程序设计</div> </div> <div class="publish-item"> <a class="pf_icon pf-pic" href="/publish?categorycode=b4b"></a> <div class="publish-item-text">Java相关</div> </div> </div> <div class="publish-cancel"> <img src="/content/css/img/close.png" alt=""> </div> </div> </div> </div> <!-- 悬浮按钮 --> <!-- <div class="popbtn-box"> <a class="popbtn f-publish"></a> <div class="f-top-wraper" id="gotop"><div class="popbtn f-top"></div></div> </div> --> </form> <!-- star 登录 --> <div class="login"> <div class="bgs"></div> <div class="deng"> <div class="deng-top"> <div class="grids log-top clearfix"><span>用户登录</span></div> <i class="close cancel"></i> </div> <div class="grids clearfix"> <div class="login-left"> <div class=" clearfix"> <div class="names"> <input type="text" class="tex num js_login" name="fname" placeholder="请输入用户名" /><i class="name_txt"></i> </div> </div> <div class=" clearfix"> <div class="names"> <input type="password" class="pwd password js_login" name="lname" placeholder="请输入密码" /><i class="pwd_txt"></i> </div> </div> <input name="" id="tj_but" class="login-btn" type="button" value="登录" /> <div class="chk clearfix"> <span>还没有账号?</span><i class=" js_enroll">立即注册</i> </div> </div> </div> </div> </div> <!-- end 登录 --> <!-- start 注册 --> <div class="register"> <div class="bgs"></div> <div class="deng"> <div class="deng-top"> <div class="grids log-top clearfix"><span>用户注册</span></div> <i class="close js_register-close"></i> </div> <div class="grids clearfix"> <div class="login-left"> <div class=" clearfix"> <div class="names"> <input type="text" class="tex num js_reg" name="fname" placeholder="请输入用户名" /><i class="name_txt"></i> </div> </div> <div class=" clearfix"> <div class="names"> <input type="password" class="pwd password js_reg" name="pwd" placeholder="设置密码" /><i class="pwd_txt"></i> </div> </div> <div class=" clearfix"> <div class="names"> <input type="password" class="pwd re-password js_reg" name="re_pwd" placeholder="确认密码" /><i class="re-pwd_txt"></i> </div> </div> <input name="" id="regs" class="login-btn" type="button" value="注册" /> </div> </div> </div> <!-- end deng --> </div> <script type="text/javascript"> var hitcount_type = 0; </script> <script type="text/javascript" src="/assets/js/jquery-1.12.4.min.js"></script> <script src="/assets/js/vendor.js"></script> <script type="text/javascript" src="/assets/js/style.js?v=20200812"></script> </body> </html>