大约有 40,000 项符合查询结果（耗时：0.0398秒） [XML]
Using LINQ to remove elements from a List
...
Simple solution:
static void Main()
{
List<string> myList = new List<string> { "Jason", "Bob", "Frank", "Bob" };
myList.RemoveAll(x => x == "Bob");
foreach (string s in myList)
{
//
}
}
...
Read lines from a file into a Bash array [duplicate]
...rip off the newline characters. Makes it easier to use the array (e.g. for string comparisons) and it is not often that you'll want to keep the newline anyway.
– morloch
Feb 24 '15 at 2:55
...
Can I have multiple primary keys in a single table?
...r example:
CREATE TABLE userdata (
userid INT,
userdataid INT,
info char(200),
primary key (userid, userdataid)
);
Update: Here is a link with a more detailed description of composite primary keys.
share
...
Doctrine2: Best way to handle many-to-many with extra columns in reference table
...was already created and used as a many to many. We realized that we needed extra fields in our many to many so we created a different entity. The trouble is, with existing data, and an existing table with the same name, it doesn't seem to want to be friends. Has anyone tried this before?
...
Socket.IO Authentication
...cation system. If
successful your application returns an
authorization string to the browser
signed with you Pusher secret. This is
sent to Pusher over the WebSocket,
which completes the authorization (2)
if the authorization string matches.
Because also socket.io has unique socket_id ...
Check if table exists and if it doesn't exist, create it in SQL Server 2008
...ble) use type = 'U' instead of type in (N'U') (the column _type is of type char using Nchar causes an implicit conversion which often causes issues with the cardinality estimator) if (not exists (select object_id from sys.objects where object_id = OBJECT_ID(N'[dbo].[client_tgi_g67_period_list]') and...
What is your naming convention for stored procedures? [closed]
... have multiple applications calling the same procedure then you need to be extra careful, any modification to that proc could break those multiple apps. Naming wise, it is a grey area, but you could name it common/global or anything you see fit. @localghosts: thanks for being informative.
...
Finish an activity from another activity
...@Override
public void onReceive(Context arg0, Intent intent) {
String action = intent.getAction();
if (action.equals("finish_activity")) {
finish();
// DO WHATEVER YOU WANT.
}
}
};
registerReceiver(broadcastReceiver, new IntentFilter("finish_ac...
How do you detect where two line segments intersect? [closed]
... intersect the intersection point may be stored in the floats i_x and i_y.
char get_line_intersection(float p0_x, float p0_y, float p1_x, float p1_y,
float p2_x, float p2_y, float p3_x, float p3_y, float *i_x, float *i_y)
{
float s1_x, s1_y, s2_x, s2_y;
s1_x = p1_x - p0_x; s1_y = p1...
sphinx-build fail - autodoc can't import/find module
...ath to the front of sys.path using os.path.insert(0, ...), and just add an extra .
import os
import sys
sys.path.insert(0, os.path.abspath('..'))
If you have setup your sphinx project to use separate build and source directories, that call should instead be:
sys.path.insert(0, os.path.abspath('....