大约有 7,000 项符合查询结果（耗时：0.0236秒） [XML]
How do I use su to execute the rest of the bash script as that user?
...Jadhav, he used it here just to show the ID of the current user, the ID of root is 0, so the first id will show you some number, but the second one will definetly show 0 (because the second one was executed inside a block run by root). You can user whoami instead of id which will return the name ins...
How to Deserialize XML document
...ring Model { get; set; }
}
[Serializable()]
[System.Xml.Serialization.XmlRoot("CarCollection")]
public class CarCollection
{
[XmlArray("Cars")]
[XmlArrayItem("Car", typeof(Car))]
public Car[] Car { get; set; }
}
The Deserialize function:
CarCollection cars = null;
string path = "car...
How to log something in Rails in an independent log file?
...ActiveRecord::Base
def my_logger
@@my_logger ||= Logger.new("#{Rails.root}/log/my.log")
end
def before_save
my_logger.info("Creating user with name #{self.name}")
end
end
Here I used a class attribute to memoize the logger. This way it won't be created for every single User object...
android: move a view on touch move (ACTION_MOVE)
...nds Activity implements View.OnTouchListener {
TextView _view;
ViewGroup _root;
private int _xDelta;
private int _yDelta;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
_root = (ViewGroup)findViewById(R.id...
Optimal way to concatenate/aggregate strings
...com/en-us/sql/t-sql/functions/string-agg-transact-sql
GROUP_CONCAT() in MySQL
http://dev.mysql.com/doc/refman/5.7/en/group-by-functions.html#function_group-concat
(Thanks to @Brianjorden and @milanio for Azure update)
Example Code:
select Id
, STRING_AGG(Name, ', ') Names
from Demo
group by I...
What is the difference between require and require-dev sections in composer.json?
...
According to composer's manual:
require-dev (root-only)
Lists packages required for developing this package, or running tests, etc. The dev requirements of the root package are installed by default. Both install or update support the --no-dev option that prevents d...
How to delete SQLite database from Android programmatically
...ge back "rm failed for mydatabase.db, Permission denied". Must you have a rooted phone for this to work? Or is there a way to specify a permission? Or does it only work on the emulator?
– PeteH
Jan 24 '13 at 7:21
...
How to get the start time of a long-running Linux process?
... PID %CPU %MEM VSZ RSS TT STAT STARTED CMD
root 1 0.0 0.1 2800 1152 ? Ss Mon Dec 23 00:31:44 2013 /sbin/init
root 5151 0.3 0.1 4732 1980 pts/2 S Sat Mar 8 16:50:47 2014 bash
For a discussion of how the information is published ...
Copy table without copying data
...her processes. Basically caused a massive lock meltdown and had to restart MySQL.
– Mark B
Jul 29 '14 at 15:57
6
...
How do I create a variable number of variables?
...s sometimes write code like this:
my_calculator.button_0 = tkinter.Button(root, text=0)
my_calculator.button_1 = tkinter.Button(root, text=1)
my_calculator.button_2 = tkinter.Button(root, text=2)
...
The coder is then left with a pile of named variables, with a coding effort of O(m * n), where m ...