大约有 42,000 项符合查询结果（耗时：0.0539秒） [XML]
How to get index using LINQ? [duplicate]
... edited Dec 30 '16 at 7:15
Andrew Savinykh
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answered Mar 18 '10 at 16:35
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Easily measure elapsed time
... To run this you have to add the #include <chrono> directive and I would change the reporting time as: std::cout << "Time difference (sec) = " << (std::chrono::duration_cast<std::chrono::microseconds>(end - begin).count()) /1000000.0 <<std::endl; (and do not f...
Regex for numbers only
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Use the beginning and end anchors.
Regex regex = new Regex(@"^\d$");
Use "^\d+$" if you need to match more than one digit.
Note that "\d" will match [0-9] and other digit characters like the Eastern Arabic numerals ٠١٢٣٤٥٦٧٨٩. ...
How to exclude a directory in find . command
I'm trying to run a find command for all JavaScript files, but how do I exclude a specific directory?
38 Answers
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How to play a notification sound on websites?
...ern browsers)
<embed> (Fallback)
Codes used
MP3 for Chrome, Safari and Internet Explorer.
OGG for Firefox and Opera.
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How do you dismiss the keyboard when editing a UITextField
...eld sends its action when the user hits the Return ("Done", whatever) key, and also sends its delegate -textFieldShouldReturn:.
– Noah Witherspoon
Nov 8 '08 at 5:13
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How do I get ASP.NET Web API to return JSON instead of XML using Chrome?
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This is a surprisingly overlooked answer, and although the original question wasn't totally clear, this directly makes JSON the default response for a web browser (which sends Accept: text/html). Good job.
– gregmac
Jan 15 '13 a...
How to get current user, and how to use User class in MVC5?
...dentity.GetUserId();
Worth mentioning that User.Identity.IsAuthenticated and User.Identity.Name will work without adding the above mentioned using statement. But GetUserId() won't be present without it.
If you're in a class other than a Controller, use
HttpContext.Current.User.Identity.GetUserI...
Using PowerShell to write a file in UTF-8 without the BOM
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Using .NET's UTF8Encoding class and passing $False to the constructor seems to work:
$MyRawString = Get-Content -Raw $MyPath
$Utf8NoBomEncoding = New-Object System.Text.UTF8Encoding $False
[System.IO.File]::WriteAllLines($MyPath, $MyRawString, $Utf8NoBomEn...
Node.js - Find home directory in platform agnostic way
...indows a user's home directory might be C:\Users[USERNAME] or C:\Documents and Settings[USERNAME] depending on which version of Windows is being used. On Unix this isn't an issue.
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