大约有 41,000 项符合查询结果（耗时：0.0341秒） [XML]
\d is less efficient than [0-9]
... not [0-9].
You can generate a list of all such characters using the following code:
var sb = new StringBuilder();
for(UInt16 i = 0; i < UInt16.MaxValue; i++)
{
string str = Convert.ToChar(i).ToString();
if (Regex.IsMatch(str, @"\d"))
sb.Append(str);
}
Console.WriteLine(sb.ToStr...
How to delay the .keyup() handler until the user stops typing?
...earch field. Right now it searches for every keyup. So if someone types “Windows”, it will make a search with AJAX for every keyup: “W”, “Wi”, “Win”, “Wind”, “Windo”, “Window”, “Windows”.
...
如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen
How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about accuracy, your best bet is to test out a couple different ones (making sure to try dif...
LINQ equivalent of foreach for IEnumerable
I'd like to do the equivalent of the following in LINQ, but I can't figure out how:
22 Answers
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Installing multiple instances of the same windows service on a server
So we've produced a windows service to feed data to our client application and everything is going great. The client has come up with a fun configuration request that requires two instances of this service running on the same server and configured to point at separate databases.
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int a[] = {1,2,}; Weird comma allowed. Any particular reason?
Maybe I am not from this planet, but it would seem to me that the following should be a syntax error:
20 Answers
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What do people think of the fossil DVCS? [closed]
..., I can imagine it's lightweight and robustness.
– Edwin Yip
May 5 '14 at 6:07
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show 5 more comments
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Getting the location from an IP address [duplicate]
...untry right, and at least close on the state/province, I'd consider that a WIN. If you happen to be using this to look-up info for a DOS attack, keep in mind the IPs might not even be valid (not assigned to anyone or outside valid public IP range).
– eselk
Apr...
git working on two branches simultaneously
...main repo new $GIT_DIR/worktrees folder (so that work on any OS, including Windows).
Again, once you have cloned a repo (in a folder like /path/to/myrepo), you can add worktrees for different branches in different independent paths (/path/to/br1, /path/to/br2), while having those working trees link...
Gzip versus minify
...ent files and ran gzip -9 on them. Here's the result. This was done on a WinXP machine running Cygwin and gzip 1.3.12.
-rwx------ 1 xxxxxxxx mkgroup-l-d 88 Apr 30 09:17 expanded.js.gz
-rwx------ 1 xxxxxxxx mkgroup-l-d 81 Apr 30 09:18 minified.js.gz
Here's a further test using a real-...