大约有 13,700 项符合查询结果（耗时：0.0141秒） [XML]
How to check for an active Internet connection on iOS or macOS?
...y via closures
let reachability = Reachability()!
reachability.whenReachable = { reachability in
if reachability.connection == .wifi {
print("Reachable via WiFi")
} else {
print("Reachable via Cellular")
}
}
reachability.whenUnreachable = { _ in
print("Not reachabl...
Understanding ibeacon distancing
... basic concept of how distancing with ibeacon (beacon/ Bluetooth-lowenergy/BLE) can work. Is there any true documentation on how far exactly an ibeacon can measure. Lets say I am 300 feet away...is it possible for an ibeacon to detect this?
...
IOException: read failed, socket might closed - Bluetooth on Android 4.3
... It doesn't work on nexus 4. can you please tell how to overcome this problem. I have almost tried everything. Thanks.
– Shah
Feb 27 '15 at 19:45
3
...
CListCtrl 行高设置，自定义行高 - C/C++ - 清泛网 - 专注C/C++及内核技术
...);
//调用设置行高
m_ListCtrl.SetRowHeigt(50);
OK。
工程源码下载：CListCtrl_RowHeight.zip
CListCtrl 行高 自定义
解决：mfcs110ud.lib(dllmodul.obj) : error LNK2005: _DllMain@12 已经在 ...
原因分析：
_USRDLL定义有的话，MFC会自动生成一个DllMain入口函数，
这时在dll源码中额外又添加了一个DllMain入口函数，就会出现重定义冲突。
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...ul response and serve it to
subsequent clients even when clients may be able to make a successful
request.
I'll leave it to you to decide between 4xx and 5xx, but you should use an error status code.
share
|
...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
... 7libunwind：记录程序崩溃堆栈 8TLSF源码及算法介绍 9Linux下部署企业级邮件服务器(postfix + ... 10libunwind链接时报错：undefined referenc... 本月排行 ...
浅析为什么char类型的范围是 -128~+127 - C/C++ - 清泛网 - 专注C/C++及内核技术
...负数的反码是原码除了符号位，其余为都取反，因此-1 的源码为 1 0000001 ，反码为 1 1111110, 现在再用反码来计算 1+(-1)
0000 0001
+ 1111 1110
————————
1111 1111 …………再转化为原码就是 1000 0000 = -0 ，虽然...
MFC的多国语言界面的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...http://www.cnblogs.com/xianyunhe/archive/2011/09/02/2163842.html
8. Demo源码下载：MFC的多国语言界面的实现Demo.zip
9. 想了解内部实现原理的请参考：《基于MFC的中英文图形界面的实现》。MFC 多国语言 界面
CListCtrl 如何设置单元格颜色？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...orListCtrl，必需引入的代码：ColorListCtrl.zip（4个文件）
将源码引入工程，#include "ColorListCtrl.h"，将CListCtrl换成CColorListCtrl，构造函数中指定CColorListCtrl对象的列数（这里假定CListCtrl你已经会用了）。
部分代码如下：
//设置列...