大约有 30,000 项符合查询结果（耗时：0.0644秒） [XML]
Regex empty string or email
...ex email validation in SO but I did not find any that will accept an empty string. Is this possible through Regex only? Accepting either empty string or email only? I want to have this on Regex only.
...
Download file from an ASP.NET Web API method using AngularJS
... return new HttpResponseMessage(HttpStatusCode.BadRequest);
string path = ConfigurationManager.AppSettings["QRFolder"] + + QRFile.QRId + @"\" + QRFile.FileName;
if (!File.Exists(path))
return new HttpResponseMessage(HttpStatusCode.BadRequest);
HttpResponse...
Command line for looking at specific port
...In bash:
netstat -na | grep "8080"
In PowerShell:
netstat -na | Select-String "8080"
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how to read System environment variable in Spring applicationContext
...alue from my.properties.prefix.myProperty will be bound to this variable
String myProperty;
// and this will even throw a startup exception if the property is not found
@javax.validation.constraints.NotNull
String myRequiredProperty;
//getters
}
@Component
public class MyOtherBean {
@...
Find objects between two dates MongoDB
...lts were expected, but there was still one gotten. This is because a basic string comparison is done.
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Can I create a One-Time-Use Function in a Script or Stored Procedure?
...begin
declare @sql nvarchar(max)
/*
define function here, within a string
note the underscore prefix, a good convention for user-defined temporary objects
*/
set @sql = '
create function dbo._object_name_twopart (@object_id int)
returns nvarchar(517) as
begin
return
...
Convert UTC/GMT time to local time
...
For strings such as 2012-09-19 01:27:30.000, DateTime.Parse cannot tell what time zone the date and time are from.
DateTime has a Kind property, which can have one of three time zone options:
Unspecified
Local
Utc
NOTE If yo...
What are best practices that you use when writing Objective-C and Cocoa? [closed]
...te thread. Make sure to wrap anything that modifies the database for query strings in @synchronize() {} blocks. For short queries just leave things on the main thread for easier convenience.
More SQLite optimization tips are here, though the document appears out of date many of the points are prob...
How would Git handle a SHA-1 collision on a blob?
...0151210/block-sha1/sha1.c
@@ -246,6 +246,8 @@ void blk_SHA1_Final(unsigned char hashou
blk_SHA1_Update(ctx, padlen, 8);
/* Output hash */
- for (i = 0; i < 5; i++)
- put_be32(hashout + i * 4, ctx->H[i]);
+ for (i = 0; i < 1; i++)
+ put_be32(hashout + i * 4, (ctx->...
When to use setAttribute vs .attribute= in JavaScript?
...otice that though XML is explicitly case sensitive, the DOM spec calls for string names to be normalized, so names passed to getNamedItem are effectively case insensitive.
Example Usage:
var div = document.getElementsByTagName('div')[0];
//you can look up specific attributes
var classAttr ...