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只有程序员能看懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...:“你为什么愿意留在飞机上?”这人回答说:“如果是我的团队写的这个软件,飞机根本无法起飞,根本谈不上坠毁。
程序员 笑话
Why do Chrome and IE put “Mozilla 5.0” in the User-Agent they send to the server? [duplicate]
...compatible” and began to impersonate Netscape, and called itself Mozilla/1.22 (compatible; MSIE 2.0; Windows 95), and Internet Explorer received frames, and all of Microsoft was happy, but webmasters were confused.
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Change from SQLite to PostgreSQL in a fresh Rails project
...rked for me. It uses the taps gem, created by Heroku and mentioned in Ryan Bates's Railscast #342. There are a few steps but it worked perfectly (even dates were correctly migrated), and it was far easier than the Oracle -> DB2 or SQL Server -> Oracle migrations I have done in the past.
Note...
Returning http status code from Web Api controller
...answered Apr 1 '15 at 10:57
Jon BatesJon Bates
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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度
...)健身宝(扩展版)(请右键选择链接另存为)【参三】我的车在哪儿 1、位置传感器
App Inventor为访问GPS信息提供了位置传感器组件,该组件具有纬度、经度及海拔高度三个属性。
两种情况可以触发位置信息改变事件:传...
你真的了解熊市有多么可怕吗? - 创意 - 清泛网 - 专注C/C++及内核技术
...们都说,瞧,那是大户的,有钱人,90万才能上大户室。我的股票从10万到1万。
就拿最近的一次来说把:2000年到2005年,这期间,证券公司倒闭了一半!股市日成交金额很多天低于40亿,云南铜业最低不到4块钱,那个时候,谁在...
世界那么大 你的钱够去看一圈吗? - 杂谈 - 清泛网 - 专注C/C++及内核技术
世界那么大 你的钱够去看一圈吗? 你知道世界上最拥挤的小岛圣克鲁斯岛在哪里吗?你能想象在面积只有0.012平方公里的岛上有着1200人口、90间房屋是什么样的概念吗?这样...
你知道世界上最拥挤的小岛圣克鲁斯岛在...
Extract numbers from a string
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preg_replace('/[^0-9.]/','','abc1.22'); // returns decimal 1.22
– zzapper
Aug 25 '15 at 16:09
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Linking R and Julia?
...ute the really basic flexible general data structure in R.
Note that Doug Bates alerted me about RCall a bi-directional interface from Julia to R (i.e., the other direction than R to Julia). Also, Doug recommended to target julia 0.4.0 rather than the current stable versions of julia.
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从Sloodle看三维虚拟学习环境的发展趋势 - 资讯 - 清泛网 - 专注C/C++及内核技术
...习环境能够营逼真、直观的学习环境 ,让学生沉浸在虚拟世界进行实时观察、交互、参与、实验、漫游等操作 ,将枯燥难懂的知识以“身临其境 ”的方式来感受和体会 ,使被动灌输的学习方式成为主动式和兴趣式的学习探索。这...
