大约有 43,000 项符合查询结果（耗时：0.0755秒） [XML]
How to query as GROUP BY in django?
...
@Gidgidonihah True, the example should read Members.objects.order_by('disignation').values('designation').annotate(dcount=Count('designation'))
– bjunix
Oct 30 '14 at 15:16
...
How to create our own Listener interface in android?
...
How to pass the Listener Object if our Button is already in the layout rather we don't used the MyButton m = new MyButton(this); way to create the object of Button.
– Qadir Hussain
Dec 7 '15 at 7:25
...
How to see top processes sorted by actual memory usage?
...
First you should read an explanation on the output of free. Bottom line: you have at least 10.7 GB of memory readily usable by processes.
Then you should define what "memory usage" is for a process (it's not easy or unambiguous, trust me).
...
Haml: Control whitespace around text
...
Nice timing, I just found out about these by reading Haml's source. Apparently they've been around for a while. Odd that they don't document them in the main reference page...
– Groxx
Jun 10 '11 at 23:51
...
Why would one use REST instead of SOAP based services? [closed]
...verhead (no SOAP envelope to wrap every call in)
Less duplication (HTTP already represents operations like DELETE, PUT, GET, etc. that have to otherwise be represented in a SOAP envelope).
More standardized - HTTP operations are well understood and operate consistently. Some SOAP implementations ...
What is the best way to implement a “timer”? [duplicate]
... Console.WriteLine("Press \'q\' to quit the sample.");
while(Console.Read() != 'q');
}
// Specify what you want to happen when the Elapsed event is raised.
private static void OnTimedEvent(object source, ElapsedEventArgs e)
{
Console.WriteLine("Hello World!");
}
The Elapsed event w...
Create directory if it does not exist
...on says "Forces this cmdlet to create an item that writes over an existing read-only item". Will it delete an existing folder? It should be clear in this answer.
– Peter Mortensen
Aug 24 '18 at 9:20
...
Is it acceptable and safe to run pip install under sudo?
...
Yes, it will, but it has already happened, so he needs to fix it before continuing.
– hd1
Feb 22 '13 at 16:33
1
...
How to get last inserted id?
...verConnection); // initialize the query environment
SqlDataReader myReader = mySqlCommand.ExecuteReader(); // last inserted ID is recieved as any resultset on the first column of the first row
int LastInsertedId = 0; // this value will be changed if insertion suceede
...
20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...60 3.65 1.04 4.29 0.00 88.42
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
cciss/c0d0 17.79 545.80 256.52 855159769 401914750
cciss/c0d0p1 0.00 0.00 0.00 5459 3518
cciss/c0d0p2 16.45 533.97 ...