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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...消息队列遥测传输）
MQTT 发明于 1999 年，为物联网设计的轻量级协议，基于TCP协议实现。
MQTT协议文档：https://mqtt.org/
MQTT服务质量（QoS）：3个等级
QoS0：最低质量等级，最多发送一次消息，在消息发出后，接收者不会发...
Writing a compiler in its own language
...le back ends that can be swapped out.
A little known fact is that the GNU C++ compiler has an implementation that uses only the C subset. The reason being it is usually easy to find a C compiler for a new target machine that allows you to then build the full GNU C++ compiler from it. You have now b...
How to See the Contents of Windows library (*.lib)
...r example) in order to call them correctly.
For functions linked with the C++ binary interface, the calling convention and arguments are encoded in the exported name of the function (also called "name mangling"). DUMPBIN /SYMBOLS will show you both the "mangled" function name as well as the decode...
Scripting Language vs Programming Language [closed]
...attering of ones traditionally used with an explicit compilation step:
C
C++
D
Java (but note that Java is compiled to bytecode, which is then interpreted and/or recompiled at runtime)
Pascal
...and then you have things like Python that sit in both camps: Python is widely used without a compilat...
What does the @ symbol represent in objective-c?
...
The @ character isn't used in C or C++ identifiers, so it's used to introduce Objective-C language keywords in a way that won't conflict with the other languages' keywords. This enables the "Objective" part of the language to freely intermix with the C or C++...
Generating random integer from a range
...
rand() should be considered harmful in C++ there are much better ways of getting something that is uniformly distributed and actually random.
– Mgetz
Sep 12 '13 at 19:14
...
Iterate over object keys in node.js
...tation. You can look at the spidermonkey source code and try writing it in C++ as a V8 extension.
You could try the following, however it will also load all the keys into memory
Object.keys(o).forEach(function(key) {
var val = o[key];
logic();
});
However since Object.keys is a native method...
CFileDialog用法及参数解释 - C/C++ - 清泛网 - 专注C/C++及内核技术
CFileDialog用法及参数解释CFileDialog 在MSDN中的函数原型：CFileDialog::CFileDialog( BOOL bOpenFileDialog, LPCTSTR lpszDefExt = NULL, LPCTSTR ...CFileDialog 在MSDN中的函数原型：
CFileDialog::CFileDialog(
BOOL bOpenFileDialog,
LPCTSTR lpszDefExt = NULL,
LPCTS...
给VC/SDK中的应用程序加上皮肤（实例演示） - C/C++ - 清泛网 - 专注C/C++及内核技术
给VC/SDK中的应用程序加上皮肤（实例演示）网上MFC加皮肤的资料蛮多的，SDK方面的相对较少，但是原理雷同，废话不多说了。简单说明一下过程1、复制 SkinH.dll、SkinH.lib、SkinH.h ...
本实例运行效果图
网上MFC加皮肤的资料蛮多的...
搜狗广告研发部：搜索大数据驱动市场营销 - 资讯 - 清泛网 - 专注C/C++及内核技术
...大纲大数据影响，营销领域搜狗搜索大数据，每天，数亿的网民通过各种设备，在搜狗搜索表达搜索意愿汽车行业相关搜索词：10万左右的车排...
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大数据影响，营销领域
搜狗搜索大数据，每天，数亿的网民通过各...