What I've learnt from working on startups 从失败里学到了什么,六次创业失败. 企业家不是与生俱来的,也是靠学来的. 想的太多,做的太少.…

2015-May-22 In Oracle database, dropping a table don't free up the space directly. You'll need to disabled the DB recycle bin. So whenever we drop something, it's purged automatically to free the space. http://docs.oracle.com/cd/E18283_01/server.112/…

三十年软件开发之路 https://mp.weixin.qq.com/s/EgN-9bIHonRid1DM0csQDw https://blog.juliobiason.net/thoughts/things-i-learnt-the-hard-way/ [CSDN编者按]“千帆过尽仍少年”,对于程序员来说,保留技术初心.不断提升实力是夯实自己的不二法则.而本文的作者,作为一名有着三十多年开发经验的“老”程序员,就在本文中详细总结了自己这些年踩过的坑和实践得出的真理,谈到了包括软件开发.团队工作…

what is file? virtual unit offered by operation system steps to open file 1.find the file_path(file_path) 2.open file(open) 3.read or change the file(read/write) 4.save the files(flush) 5.close the file (close) three modes to open .txt file w:clear t…

Text My aunt Jennifer is an actress. She must be at least thirty-five years old. In spit of this, she often appears on the stage as a young girl. Jennifer will have to take part in a new play soon. This time, she will be a girl of seventeen. In the p…

Text I had an amusing experience last year. After I had left a small village in the south of France. I drove on to the next town. On the way, a young man waved to me. I stopped and he asked me for a lift. As soon as he got into the car, I said good m…

When the servletcontainer (like Apache Tomcat) starts up, it will deploy and load all webapplications. When a webapplication get loaded, the servletcontainer will create the ServletContext once and keep in server's memory. The webapp's web.xml will b…

Ubuntu and Win10 - double OS 2016-02-21 Yesterday I helped my friend install Ubuntu (14.04 LTS) on his PC where there has been a MS Win10. I used UltraISO to create a U-disk installation and installed it. However, then we could only start up Ubuntu a…

catalogue . OSSEC . HashSentry: Host-Based IDS in Python . Afick . 检测流程 1. OSSEC OSSEC is an Open Source Host-based Intrusion Detection System. It performs . log analysis . integrity checking . Windows registry monitoring . rootkit detection . real-t…

题目 Source http://acm.hdu.edu.cn/showproblem.php?pid=4787 Description Now Coach Pang is preparing for the Graduate Record Examinations as George did in 2011. At each day, Coach Pang can: "+w": learn a word w "?p": read a paragraph p, an…