大约有 3,000 项符合查询结果(耗时:0.0154秒) [XML]

https://bbs.tsingfun.com/thread-2140-1-1.html 

Service and Characteristic are not published by the connected device -...

Service and Characteristic are not published by the connected device,报错如下: 问题原因:硬件/蓝牙芯片问题导致的,比如A硬件测试好的,换了B硬件没有修改uuid,就出现这个报错。 由于B硬件没有发布这些特征,就会报这个错误。
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What's the equivalent of use-commit-times for git?

... no longer modified (Git 2.2.2+, January 2015): "git checkout - how can I maintain timestamps when switching branches?".) The long answer was: I think you're much better off just using multiple repositories instead, if this is something common. Messing with timestamps is not going to work in gen...
https://www.tsingfun.com/it/tech/1389.html 

程序员之网络安全系列(二):如何安全保存用户密码及哈希算法 - 更多技术 ...

...了,想想之前几次互联网密码泄露事件。 那么如何解决? 加密 为了不让密码明文存储,我们需要对密码进行加密,这样即使数据库用户密码暴露,也是加密后的。但是如何让加密后的数据难以解密?我们现在比较流行的...
https://ullisroboterseite.de/a... 

AI2 SideBar Extension

...d functions can be triggered by a button. With larger apps, however, the available space quickly decreases and the layout becomes confusing. A side bar can help here. There are a number of implementations, but I haven't found a sufficiently extensive one and developed one myself. Almost all proper...
https://www.tsingfun.com/it/bigdata_ai/422.html 

MongoDB数据导出导入工具:mongoexport,mongoimport - 大数据 & AI - 清泛...

... line -k [ --slaveOk ] arg (=1) use secondaries for export if available, default true 参数说明: -h: 指明数据库宿主机的IP -u: 指明数据库的用户名 -p: 指明数据库的密码 -d: 指明数据库的名字 -c: 指明collection的名字 -f: 指明要导出那些...
https://www.tsingfun.com/it/bigdata_ai/2236.html 

从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...= 2; final static int RECOMMENDER_NUM = 3; public static void main(String[] args) throws IOException, TasteException { String file = "datafile/item.csv"; DataModel model = new FileDataModel(new File(file)); UserSimilarity user = new EuclideanDistanceSimilarity(...
https://bbs.tsingfun.com/thread-2250-1-1.html 

【教学】AppInventor2人工智能应用:Personal Image Classifier (PIC) Tool...

...,不然就是玩玩看 look 就算了,談不上什麼客製化。對於AI視覺辨識來說:當然就是要app看懂我們要它看懂的東西,這樣才酷啊!請看MIT App Inventor 這位帥氣學生開發者的介紹影片,針對繁複的訓練流程建立好一個網頁,您可用...
https://bbs.tsingfun.com/thread-1872-1-1.html 

MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区,为创新赋能!

... Labs的Kevin Ashton为了把宝洁的供应链上的RFID标签和互联网连接起来,在1999年第一个提出了IoT这个概念。发明人TCP协议的发明人是Vinton Cerf(下图左,曾在IBM工作过两年)和Robert Elliot Kahn(下图右)。 MQTT的发明人是IBM的Andy Stanf...
https://www.tsingfun.com/it/cpp/1261.html 

SHFileOperation函数总结(文件夹的移动、复制、删除) - C/C++ - 清泛网 -...

..." 下面这个类方便你复制多个文件或文件夹,仅作参考 //连接多个路径的类 class JOINFILEPATH { private: int pos; char* MultipleFilePath; public: JOINFILEPATH() { pos=0; MultipleFilePath=new char[MAX_PATH*10]; memset(MultipleFilePath,0,MAX_PATH*10); } ~JOINFILEP...
https://www.tsingfun.com/ilife/idea/1863.html 

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

...始跌的急,大家都不愿撤退,后来阴跌了,没办法,都不怎么关注了。再后来,开始猜测是不是真的到底了,开始抄底,我妈亏就亏在抄底抄在了熊市的山腰上。 证券公司大厅空无一人,除了工作人员已经没人。报纸的证券版...