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BLE(四)嗅探工具 - 创客硬件开发 - 清泛IT社区,为创新赋能!
文章源自:https://www.gandalf.site/2018/11/ble_26.html
商业级的Ellisys BEX400侦听工具最为符合对BLE流量捕获及分析的要求,然而售价过于昂贵;
其次,作为开源硬件且配有混杂模式追踪的“超牙”设备——Ubertooth One拥有二次开发和嗅...
Populate data table from data reader
...lumn. lines in the dtSchema foreach loop because it said it was an illegal cast to bool on (bool)drow["IsUnique"]. I didn't need them, getting the column names in order to populate the new DataTable is enough. This managed to help me overcome a ds.Fill(adapter) issue where I could not load a large t...
【软著】软件著作权证书申请流程及注意事项,模板分享 - App Inventor 2 中...
1、什么是软著?有啥用?
“软著”是“软件著作权”的简称,它是指对计算机软件的原创性成果进行法律保护的注册证书。软著是由国家版权局颁发的,表明某一软件在中国的版权归其开发者所有。
软著的作用:法律保护:...
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!
来源中文网文档:https://www.fun123.cn/reference/extensions/aix_dev.html
为什么需要开发拓展?App Inventor 2 是积木式在线安卓开发环境,利用拖拽式的方式实现代码块堆叠,从而完成相应的逻辑。上手很容易,但是由于代码块提供的功能...
Sort a Map by values
... any more (stackoverflow.com/questions/109383/…). Also, why was there a cast to Double? Shouldn't it just be return ((Comparable)base.get(a).compareTo(((Comparable)base.get(b)))?
– Stephen
Aug 11 '10 at 21:50
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How do I catch a numpy warning like it's an exception (not just for testing)?
...catch_warnings() placement depending on how big of an umbrella you want to cast with catching errors this way.
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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区,为创新赋能!
一、MQTT与TCP的区别诞生时间TCP协议诞生于1974年冷战期间。MQTT诞生于1999年互联网初期,TCP协议比MQTT协议诞生早了25年。Ashton提出IoT概念也是在1999年,因此MQTT协议生逢其时。当时MIT Auto-ID Labs的Kevin Ashton为了把宝洁的供应链上的RF...
如何获取IE (控件)的所有链接(包括Frameset, iframe) - 其他 - 清泛IT社...
来源:新浪博客
IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节点列表:
CComPtr<IHTMLElement> body;
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CComPtr<IDispatch> spDispCollection;
body->get_all(&spDispCollection);复制代码所以要获取iframe/frame(frameset) ...
Structure padding and packing
... know mostly used in transmitting(i.e networking) a data, when you need to cast a byte array to a struct, and be sure that an array fit to a struct fields. If the spark can not do that, how those working at all?!
– Hi-Angel
May 24 '14 at 9:19
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Difference between std::system_clock and std::steady_clock?
...eryPerformanceCounter(&counter);
return time_point(duration(static_cast<rep>((double)counter.QuadPart / frequency.QuadPart *
period::den / period::num)));
}
private:
static bool is_inited; ...
