<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[RSS Feed]]></title><description><![CDATA[RSS Feed]]></description><link>http://direct.ecency.com</link><image><url>http://direct.ecency.com/logo512.png</url><title>RSS Feed</title><link>http://direct.ecency.com</link></image><generator>RSS for Node</generator><lastBuildDate>Wed, 22 Apr 2026 00:20:26 GMT</lastBuildDate><atom:link href="http://direct.ecency.com/@ywzqwwt/rss" rel="self" type="application/rss+xml"/><item><title><![CDATA[a beautiful old town]]></title><description><![CDATA[Last weekend, I went to a very beautiful place in China, Wuzhen. I attended the CTO conference there. I know a lot of Internet bigwigs. I have gained a lot from their communication. After the meeting,]]></description><link>http://direct.ecency.com/beautiful/@ywzqwwt/a-beautiful-old-town</link><guid isPermaLink="true">http://direct.ecency.com/beautiful/@ywzqwwt/a-beautiful-old-town</guid><category><![CDATA[beautiful]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 10 Sep 2018 07:31:30 GMT</pubDate><enclosure url="https://images.ecency.com/p/2gsjgna1uruv8X2R8t7XDv5HGXyHWCCu4rKmbB5pmEzjYScdh4r5BvBzT2aKFxy4GtyePSU1hm8icr8r1PZhTaxFY2HqA7kEcTCDxDNuv7uGSBaMsU?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[橘子洲]]></title><description><![CDATA[一分好奇登船去，上岸方知是橘洲。静幽深处藏伟人，解放中国耀东方。]]></description><link>http://direct.ecency.com/poetry/@ywzqwwt/37zuxq</link><guid isPermaLink="true">http://direct.ecency.com/poetry/@ywzqwwt/37zuxq</guid><category><![CDATA[poetry]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 03 Sep 2018 01:32:24 GMT</pubDate></item><item><title><![CDATA[centos7+nginx-1.13.5搭建mp4视频服务器]]></title><description><![CDATA[1、yum -y install gcc-c++ 2、wget 3、tar -zxvf nginx-1.13.5.tar.gz 4、cd nginx-1.13.5 5、./configure --prefix=/usr/local/nginx --user=root --group=root --with-select_module --with-poll_module --with-file-aio]]></description><link>http://direct.ecency.com/nginx/@ywzqwwt/centos7-nginx-1-13-5-mp4</link><guid isPermaLink="true">http://direct.ecency.com/nginx/@ywzqwwt/centos7-nginx-1-13-5-mp4</guid><category><![CDATA[nginx]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Sun, 02 Sep 2018 08:04:03 GMT</pubDate></item><item><title><![CDATA[The potential hundredfold coin:true]]></title><description><![CDATA[First this is not investment advice.Nor is to recommend you to buy it.this is just to introduce some situations of the coin true. TrueChain is a truly fast, permissionless, secure and scalable permissionless]]></description><link>http://direct.ecency.com/hundredfold/@ywzqwwt/the-potential-hundredfold-coin-true</link><guid isPermaLink="true">http://direct.ecency.com/hundredfold/@ywzqwwt/the-potential-hundredfold-coin-true</guid><category><![CDATA[hundredfold]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Sun, 02 Sep 2018 01:28:39 GMT</pubDate><enclosure url="https://images.ecency.com/p/2gsjgna1uruv8X2R8t7XDv5HGXyHWCCu4rKmbB5pmEzjYSdzPSRDQWo9p2JXX7D5FdhVa7WaiSxeb6jkWmTqbtUioRWgs1QbSBXvA4GKrkfyvbsVnv?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Oracle里二进制与十进制的相互转换]]></title><description><![CDATA[Oracle里有内建函数bin_to_num可以将二进制数转换为十进制数，但这个函数的入参是个数不定的0或1： [sql] view plaincopy SELECT BIN_TO_NUM (1, 1, 1, 1, 0, 1, 1) FROM DUAL;]]></description><link>http://direct.ecency.com/oracle/@ywzqwwt/wb819-oracle</link><guid isPermaLink="true">http://direct.ecency.com/oracle/@ywzqwwt/wb819-oracle</guid><category><![CDATA[oracle]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Sun, 02 Sep 2018 01:14:45 GMT</pubDate></item><item><title><![CDATA[以太坊POW流程总结]]></title><description><![CDATA[Pow算法概念简单，即工作端提交难以计算但易于验证的计算结果，其他节点通过验证这个结果来确信工作端完成了相当的工作量。 　　但其缺陷也很明显：1、随着节点将CPU挖矿升级为GPU、甚至矿机挖矿，节点数和算力已渐渐失衡；2、比特币等网络每秒需完成数百万亿次哈希计算，资源大量浪费。]]></description><link>http://direct.ecency.com/pow/@ywzqwwt/pow</link><guid isPermaLink="true">http://direct.ecency.com/pow/@ywzqwwt/pow</guid><category><![CDATA[pow]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Wed, 29 Aug 2018 01:21:06 GMT</pubDate></item><item><title><![CDATA[How to avoid being dismissed]]></title><description><![CDATA[What you need to do is to keep learning and constantly improve your strength.]]></description><link>http://direct.ecency.com/avoid/@ywzqwwt/how-to-avoid-being-dismissed</link><guid isPermaLink="true">http://direct.ecency.com/avoid/@ywzqwwt/how-to-avoid-being-dismissed</guid><category><![CDATA[avoid]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Tue, 28 Aug 2018 03:54:09 GMT</pubDate></item><item><title><![CDATA[The happiest thing（最开心的事情）]]></title><description><![CDATA[The happiest thing for me is that everyday when i wake up , i suprised to find that i am alive,so i must cherish this hard won day.（每天当我醒来的时候发现我还活着，所以我必须要珍惜这来之不易的一天）]]></description><link>http://direct.ecency.com/happiest/@ywzqwwt/the-happiest-thing</link><guid isPermaLink="true">http://direct.ecency.com/happiest/@ywzqwwt/the-happiest-thing</guid><category><![CDATA[happiest]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Tue, 28 Aug 2018 01:32:27 GMT</pubDate></item><item><title><![CDATA[hdfs数据迁移]]></title><description><![CDATA[确保被迁移的服务器(HDFS)新创建的文件夹权限是777。2.确保被迁移的服务器namenode、datanode、yarn的进程都在，迁移过程中跑map。3.同一版本迁移：bin/hadoop distcp hdfs:192.168.100.110:8020/carInfo hdfs://192.168.100.122:8020/carInfo 4.针对不同版本Hadoop迁移：bin/hadoop]]></description><link>http://direct.ecency.com/hdfs/@ywzqwwt/hdfs</link><guid isPermaLink="true">http://direct.ecency.com/hdfs/@ywzqwwt/hdfs</guid><category><![CDATA[hdfs]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 07:57:42 GMT</pubDate></item><item><title><![CDATA[metaq总结]]></title><description><![CDATA[1.使用的包直接导的metaq软件中的lib里面的所有 2.主要写的生产者和消费者 3.另外特别注意需要注册 topic 在metaq/conf下面的server.ini 上代码：生产者 package examples; /* 生产者 本次用的控制台输入方式。 */ import java.io.BufferedReader; import java.io.InputStreamReader; import]]></description><link>http://direct.ecency.com/metaq/@ywzqwwt/metaq</link><guid isPermaLink="true">http://direct.ecency.com/metaq/@ywzqwwt/metaq</guid><category><![CDATA[metaq]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 07:24:21 GMT</pubDate></item><item><title><![CDATA[查询表详情]]></title><description><![CDATA[在command模式下，输入 desc 表名 在sql下可用 select t.table_name,t.column_name,c.DATA_TYPE||'(' ||c.DATA_LENGTH||')',t.comments from USER_COL_COMMENTS t,USER_TAB_COLUMNS c where c.column_name= t.column_name and]]></description><link>http://direct.ecency.com/sql/@ywzqwwt/4wwszx</link><guid isPermaLink="true">http://direct.ecency.com/sql/@ywzqwwt/4wwszx</guid><category><![CDATA[sql]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 07:17:57 GMT</pubDate></item><item><title><![CDATA[ORACLE查看某个表的主外键关系]]></title><description><![CDATA[SELECT USER_CONS_COLUMNS.CONSTRAINT_NAME AS 约束名, USER_CONS_COLUMNS.TABLE_NAME AS 子表名, USER_CONS_COLUMNS.COLUMN_NAME AS 子表列名, USER_CONS_COLUMNS.POSITION AS 位置, USER_INDEXES.TABLE_NAME AS 主表名,]]></description><link>http://direct.ecency.com/oracle/@ywzqwwt/4jxmgr-oracle</link><guid isPermaLink="true">http://direct.ecency.com/oracle/@ywzqwwt/4jxmgr-oracle</guid><category><![CDATA[oracle]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 07:03:51 GMT</pubDate></item><item><title><![CDATA[DCL DDL  DML]]></title><description><![CDATA[DCL 权限控制 GRANT 权限名称 TO 用户名 REVOKE 权限名称 FROM 用户名 DDL 对象的管理 CREATE CREATE USER 用户名 IDENTIFIED BY 密码 ALTER ALTER USER 用户名 IDENTIFIED BY 新密码 DROP DROP USER 用户名 CASCADE DML 数据的管理 表结构 域 字段类型 [not] NULL DEFALT]]></description><link>http://direct.ecency.com/oracle/@ywzqwwt/dcl-ddl-dml</link><guid isPermaLink="true">http://direct.ecency.com/oracle/@ywzqwwt/dcl-ddl-dml</guid><category><![CDATA[oracle]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 06:57:06 GMT</pubDate></item><item><title><![CDATA[How to lose weight]]></title><description><![CDATA[what we just should is 1、eat less 2、more running 3、action 4、Insist]]></description><link>http://direct.ecency.com/lose/@ywzqwwt/how-to-lose-weight</link><guid isPermaLink="true">http://direct.ecency.com/lose/@ywzqwwt/how-to-lose-weight</guid><category><![CDATA[lose]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 06:44:30 GMT</pubDate></item><item><title><![CDATA[以太坊开发--truffle和testrpc使用介绍]]></title><description><![CDATA[0、truffle是本地的用来编译、部署智能合约的工具，而testrpc不同于geth，geth是真正的以太坊环境，testrpc是在本地使用内存模拟的一个以太坊环境，对于开发调试来说，更为方便快捷，当你的合约在testrpc中测试通过后，再可以部署到geth中去。所以可以说truffle和testrpc就是两大杀器。这篇博客就来介绍它们的使用。对于环境的配置和truffle、testrpc的安装。]]></description><link>http://direct.ecency.com/eth/@ywzqwwt/truffle-testrpc</link><guid isPermaLink="true">http://direct.ecency.com/eth/@ywzqwwt/truffle-testrpc</guid><category><![CDATA[eth]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 06:36:30 GMT</pubDate></item><item><title><![CDATA[truechain环境搭建]]></title><description><![CDATA[Windows环境 第一步：编译环境安装 1.1 ：找到安装路径" 1.2：下载合适的msi,作者本身的是windows 64位的，所以，直接下载：go1.9.2.windows-amd64.msi 1.3、安装go1.9.2.windows-amd64.msi----建议网上寻找相关文档，需要配置环境变量 参考目录： 1.4、安装成功，在cmd命令行输入 go出现下图为成功。 1.5]]></description><link>http://direct.ecency.com/truechain/@ywzqwwt/3stkay-truechain</link><guid isPermaLink="true">http://direct.ecency.com/truechain/@ywzqwwt/3stkay-truechain</guid><category><![CDATA[truechain]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 06:29:12 GMT</pubDate></item><item><title><![CDATA[TrueChain方案设计]]></title><description><![CDATA[TrueChain方案设计 1 Introduction Truechain是基于go-ethereum源代码实现的基础链，使用与以太坊一致的加密原语。椭圆曲线(secp256k1,ECDSA)，哈希(keccak-256)，Merkle树。 2 Definitions 账本实现为双链结构(fast chain, snail chain)，fast]]></description><link>http://direct.ecency.com/true/@ywzqwwt/truechain</link><guid isPermaLink="true">http://direct.ecency.com/true/@ywzqwwt/truechain</guid><category><![CDATA[true]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 06:20:24 GMT</pubDate></item><item><title><![CDATA[以太坊源码调试环境搭建]]></title><description><![CDATA[1、go get后，所有依赖包都有了，但在goland里面跑的时候报错：# github.com/ethereum/go-ethereum/crypto/secp256k1；exec: "gcc": executable file not found in %PATH%；解决：因为缺失gcc所以下载 然后安装，如果成功就ok了。如果安装也失败就下载这个的离线安装包：地址：]]></description><link>http://direct.ecency.com/eth/@ywzqwwt/6apkkt</link><guid isPermaLink="true">http://direct.ecency.com/eth/@ywzqwwt/6apkkt</guid><category><![CDATA[eth]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 06:12:36 GMT</pubDate></item><item><title><![CDATA[oracle 完整总结版]]></title><description><![CDATA[1、创建用户 CREATE USER <用户名> IDENTIFIED BY <密码> ALTER USER SYSTEM IDENTIFIED BY a12345; DROP USER SYSTEM 2、给用户赋予权限 连接权限 CONNECT 使用资源权限 RESOURCE 创建表的权限 CREATE TABLE DBA DBA GRANT <权限名称> TO]]></description><link>http://direct.ecency.com/oracle/@ywzqwwt/2a2kqy-oracle</link><guid isPermaLink="true">http://direct.ecency.com/oracle/@ywzqwwt/2a2kqy-oracle</guid><category><![CDATA[oracle]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 06:05:54 GMT</pubDate></item><item><title><![CDATA[PreparedStatement execute执行插入成功却返回false]]></title><description><![CDATA[用PreparedStatement的execute方法执行sql插入语句，执行成功，但是返回结果却为false。 boolean execute() throws SQLException在此 PreparedStatement 对象中执行 SQL 语句，该语句可以是任何种类的 SQL 语句。一些特别处理过的语句返回多个结果，execute 方法处理这些复杂的语句；executeQuery 和]]></description><link>http://direct.ecency.com/preparedstatement/@ywzqwwt/preparedstatement-execute-false</link><guid isPermaLink="true">http://direct.ecency.com/preparedstatement/@ywzqwwt/preparedstatement-execute-false</guid><category><![CDATA[preparedstatement]]></category><dc:creator><![CDATA[ywzqwwt]]></dc:creator><pubDate>Mon, 27 Aug 2018 05:52:18 GMT</pubDate></item></channel></rss>