大家好，我是皮皮。一、前言前几天在Python铂金群有个叫【水方人子】的粉丝问了一个关于excel处理的问题，这里拿出来给大家分享下，一起学习。能不能把多张excel表做连接，就比如1表有A，B，C列，2表有A，B，D列，我想把A，B，C，D合到一张表上面，可以吗，就跟数据库左连接一样？二、解决过程一开始想到的方法是Excel中的vlookup函数，确实

问：进程和线程的区别？!(https://oscimg.oschina.net/oscnet/fe2c4d0bc8505c5df1b4fc6199d4f028572.jpg)进程是资源分配的最小单位，线程是CPU调度的最小单位!(https://oscimg.oschina.net/oscnet/971d1d6c10695c984

提示窗口：!(https://oscimg.oschina.net/oscnet/dcbab45ac6c77e5b5523e9d5d804514cc68.jpg)解决步骤：第一步：进入SQL2008配置工具中的安装中心!(https://oscimg.oschina.net/oscnet/d1d7eaa914c6c850f85c4e

作者|孙健波（天元） 阿里巴巴技术专家导读：OAM(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fmp.weixin.qq.com%2Fs%3F__biz%3DMzUzNzYxNjAzMg%3D%3D%26mid%3D2247487043%26idx%3D1%26sn%

http://182.254.8.83/vwecam.gtimg.com/1006\_d81d60f3c83844a5ad6a184149d4ccbb.f0.mp4?sha78A27CF4908AB546C4ED08708B57168D62190991&ptypehttp&amp%3bvkeyF164A3A5C6358B4A5B0EDAEE4A9F2B

首先，从git上拉取代码：!(https://oscimg.oschina.net/oscnet/d26f7f4baf65d73148a02d77c1e25a0d603.png)我们将新clone下来的项目打开，可以发现在git上原本是maven项目的工程，没有了maven的结构：!(https://oscimg.oschina.net/

作者|声东阿里云售后技术专家文章来源：Docker，点击查看原文(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fmp.weixin.qq.com%2Fs%3F__biz%3DMzA5OTAyNzQ2OA%3D%3D%26mid%3D2649702274%26idx%3D1

转自：https://juejin.im/post/5d214639e51d4550bf1ae8df(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fjuejin.im%2Fpost%2F5d214639e51d4550bf1ae8df)前言:整理了一些Java基础流程图

2019年11月9日，.NETConf2019中国峰会(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fmp.weixin.qq.com%2Fs%3F__biz%3DMzU1NjgwNTExNQ%3D%3D%26mid%3D2247484464%26idx%3D3%26s

前情回顾GoogleMapReduce到底解决什么问题？(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fmp.weixin.qq.com%2Fs%3F__biz%3DMjM5ODYxMDA5OQ%3D%3D%26mid%3D2651961826%26idx%3D1%26sn