大约有 30,000 项符合查询结果（耗时：0.0437秒） [XML]
How to modify existing, unpushed commit messages?
I wrote the wrong thing in a commit message.
27 Answers
27
...
Python Sets vs Lists
In Python, which data structure is more efficient/speedy? Assuming that order is not important to me and I would be checking for duplicates anyway, is a Python set slower than a Python list?
...
What should I do if the current ASP.NET session is null?
...hich you will only rarely run into:
If you have disabled the SessionState http module, disabling sessions altogether
If your code runs before the HttpApplication.AcquireRequestState event.
Your code runs in an IHttpHandler, that does not specify either the IRequiresSessionState or IReadOnlySessionS...
Check if table exists and if it doesn't exist, create it in SQL Server 2008
...N'tblTest' AND xtype = N'U')
BEGIN
PRINT 'Table Exists'
END
Reference: http://sqlhints.com/2014/04/13/how-to-check-if-a-table-exists-in-sql-server/
share
|
improve this answer
|
...
How to give Jenkins more heap space when it´s started as a service under Windows?
...=hudson.lifecycle.WindowsServiceLifecycle
-jar "%BASE%\jenkins.war" --httpPort=8080</arguments>
to
<arguments>-Xrs -Xmx2048m -XX:MaxPermSize=512m
-Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle
-jar "%BASE%\jenkins.war" --httpPort=8080</arguments>
...
How to properly seed random number generator
...typically set the seed inside of an init() block. They're documented here: http://golang.org/doc/effective_go.html#init
share
|
improve this answer
|
follow
|
...
What does '--set-upstream' do?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
...
How to detect READ_COMMITTED_SNAPSHOT is enabled?
...
As per https://msdn.microsoft.com/en-us/library/ms180065.aspx,
"DBCC USEROPTIONS reports an isolation level of 'read committed snapshot' when the database option READ_COMMITTED_SNAPSHOT is set to ON and the transaction isolation lev...
CSS display: table min-height not working
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...