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https://www.tsingfun.com/ilife/tech/613.html 

马云:互联网时代已经过去20年,接下来30年才是关键 - 资讯 - 清泛网 - 专...

...的想法都不一样,有的人想过了就算做过了,有的人开始进入了一点一滴的开始做起来。 我自己觉得,很多人说,你了不起,因为你做了阿里巴巴,也做了淘宝,好像也有支付宝,好像做了一大堆。我想告诉大家,这不是我做...
https://bbs.tsingfun.com/thread-1934-1-1.html 

为AppInventor2开发自己的拓展(Extension) - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

...sp; //依赖第三方jar库的,多个英文逗号分隔 拓展编译进入目录:appinventor-sources/appinventor,执行如下命令:ant extensions 编译成功后,.aix拓展在 appinventor-sources/appinventor/components/build/extensions/ 目录下:拓展导入,测试验证基...
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App Inventor 2 SQLite 拓展:超流行兼容主流SQL语法的迷你本地数据库引擎...

...nt, asynchronously. DeleteDatabase() 删除已关闭的数据库。将永久删除数据库文件。 Execute(sql,bindParams) 执行单个参数化的 SQL语句(非 SELECT语句,如:create table、insert、update、delete等),并返回执行是否成功。 ExecuteAsync(tag,sql,...
https://www.tsingfun.com/it/os... 

第一个Hello,OS World操作系统 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...OS》板块发帖讨论。 编译执行过程: 打开dos窗口,进入源码所在目录,执行命令nasm boot.asm -o pfos.img: 同目录下生成一个"pfos.img"软盘映像文件,接下来只需要把它装载到虚拟机运行即可,当然有条件的话可以实际写入老...
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How are everyday machines programmed?

...dows now (grocery store or other self checkout lines). The desire to have tv shows blaring at you while you pump your gas, and dancing baloney on the screen when not, has lead to more horsepower. Likewise the coke and water machines with the two axis grabber. – old_timer ...
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How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?

... MainActivity extends Activity implements MyTaskInformer { private TextView mMyTextView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mMyTextView = (TextView) findView...
https://www.tsingfun.com/it/cpp/655.html 

VC窗口刷新InvalidateRect和UpdateWindow - C/C++ - 清泛网 - 专注C/C++及内核技术

...试一试在WM_PAINT处理函数中不写BeginPaint会怎样?程序会像进入了一个死循环一样达到惊人的CPU占用率,你会发现程序总在处理一个接 一个的WM_PAINT消息。这是因为在通常情况下,当应用收到WM_PAINT消息时,窗口的Update Region都是非...
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What is the best way to detect a mobile device?

... So how mobile would you consider an android TV with mouse? How mobile is a windows PC that can run in dual mode (with keyboard, or as touch screen)? If you did this before the iPad was invented, then you had to add it later to all your sites. Next OSs coming out: Ubunt...
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Difference between namespace in C# and package in Java

...er( int no_of_lines){ } void ad_on_tv(int seconds){ } } } To use in client class using marketing; using marketing.advertising; ''' In java you use same method. You pack multiple classes in one package and use it many times. It i...
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BLE(一)概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区,...

...,访问手机命令。 3. Peripheral Hijacking有些设备尽管没有进入连接模式也会对连接请求进行响应,这类设备通常是一些没有MMI(Man Machine Interface)的设备。例如一些蓝牙耳机会被强制连接,还有一些设备有固定的PIN码,Peripheral Hij...