大约有 28,000 项符合查询结果（耗时：0.0513秒） [XML]
[] and {} vs list() and dict(), which is better?
...per the benchmark, it seems to take ~200ms which is way slower than normal http calls. Try running dict() normally in shell and then run timeit("dict()"), you would see visible difference in execution.
– piyush
May 26 '17 at 14:04
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How to use HttpWebRequest (.NET) asynchronously?
How can I use HttpWebRequest (.NET, C#) asynchronously?
8 Answers
8
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MySQL “NOT IN” query
...e carefull NOT IN is not an alias for <> ANY, but for <> ALL!
http://dev.mysql.com/doc/refman/5.0/en/any-in-some-subqueries.html
SELECT c FROM t1 LEFT JOIN t2 USING (c) WHERE t2.c IS NULL
cant' be replaced by
SELECT c FROM t1 WHERE c NOT IN (SELECT c FROM t2)
You must use
SELECT...
How to read integer value from the standard input in Java
...andable.
You can compile and run the JAVA programs online at this website: http://ideone.com
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How do I turn off PHP Notices?
...error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);
?>
source http://php.net/manual/en/function.error-reporting.php
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How to Animate Addition or Removal of Android ListView Rows
....getDuration());
for top-to-down animation use :
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromYDelta="20%p" android:toYDelta="-20"
android:duration="@android:integer/config_mediumAnimTime"/>
<alpha android:fromA...
Favorite Visual Studio keyboard shortcuts [closed]
...n)
{
throw;
}
which you can then expand.
Full list of C# Snippets: http://msdn.microsoft.com/en-us/library/vstudio/z41h7fat.aspx
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edited Aug 8 '13 at 23:00
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How do I install cURL on cygwin?
...
I just encountered this.
1) Find the cygwin setup.exe file from http://cygwin.com/ and run it.
2) Click/enter preferences until you reach the "Select Packages" window. (See image)
3) Click (+) for Net
4) Click the entry for curl. (Make sure you select the checkbox for the Binary)
5) I...
Change from SQLite to PostgreSQL in a fresh Rails project
...ord
Migrate the data
$ taps pull postgres://f3@localhost/f3_development http://user:password@localhost:5000
Restart the Rails webserver
$ rails s
Cleanup the Gemfile
#gem 'sqlite3'
gem 'pg'
#gem 'taps'
$ bundle
sha...
Execute script after specific delay using JavaScript
... a form submission for a few seconds to evaluate page changes before a new HTTP request is made.
– rushinge
Jan 2 '13 at 19:15
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