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CString的截取字符串，截取ip:port - C/C++ - 清泛网 - 专注C/C++及内核技术
CString的截取字符串，截取ip:portCString截取ip:port，代码如下：CString strIpPort = "127.0.0.1:8888";CString strIp, strPort;int index = strIpPort.Find('...CString截取ip:port，代码如下：
CString strIpPort = "127.0.0.1:8888";
CString strIp, strPort;
int index = strIpPort.Fi...
如何诊断CDN故障 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...点？
幸运的是通过阿里测提供的服务，我们能拿到这个IP列表，当然这个IP列表不可能百分百完整，不过应该包含了大部分的节点，有兴趣的可以参考百度的JQuery CDN例子。
需要说明的是阿里测偏重于测试国内的网络环境，如果...
What is the worst gotcha in C# or .NET? [closed]
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Type.GetType
The one which I've seen bite lots of people is Type.GetType(string). They wonder why it works for types in their own assembly, and some types like System.String, but not System.Windows.Forms.Form. The answer is that it only looks in the current assembly and in mscorlib.
Anonymous m...
How do you add swap to an EC2 instance?
...nce.
Paging works by creating an area on your hard drive and using it for extra memory, this memory is much slower than normal memory however much more of it is available.
To add this extra space to your instance you type:
sudo /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
sudo /sbin/mkswa...
How to make MySQL handle UTF-8 properly
... worry utf8mb4 taking extra storage when most text is ASCII. Although char strings are preallocated, varchar strings are not -- see the last few lines on this documentation page. For example, char(10) will be pessimistically reserve 40 bytes under utf8mb4, but varchar(10) will allocate bytes in kee...
Origin null is not allowed by Access-Control-Allow-Origin
...equest header Origin: null
My PHP response header (Note that 'null' is a string). HTTP_REFERER allow cross-origin from a remote server to another.
header('Access-Control-Allow-Origin: '.(trim($_SERVER['HTTP_REFERER'],'/')?:'null'),true);
header('Access-Control-Allow-Credentials:true',true);
I ...
How does Google calculate my location on a desktop?
...onflicting info (namely, the specific info about my wifi router against my ip geolocation, which pinpoints me in the far east).
So, to answer your question, google, or someone for him, did "wardriving" around, mapping the wifi presence. Every time a query is performed to the system (probably in com...
Remote JMX connection
...oking the program with the system parameter java.rmi.server.hostname="YOUR_IP", either as an environment variable or using
java -Djava.rmi.server.hostname=YOUR_IP YOUR_APP
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how to find host name from IP with out login to the host
i need to find the host name of a UNIX host whose IP is known with out login to that UNIX host
11 Answers
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#pragma pack effect
...ing a DWORD at an address which isn't divisible by 4 requires at least one extra CPU cycle on a 32 bit processor. So, if you have e.g. three char members char a, b, c;, they actually tend to take 6 or 12 bytes of storage.
#pragma allows you to override this to achieve more efficient space usage, a...