大约有 15,400 项符合查询结果（耗时：0.0239秒） [XML]
Creating default object from empty value in PHP?
...ve E_STRICT warnings enabled in error_reporting for PHP versions <= 5.3.x, or simply have error_reporting set to at least E_WARNING with PHP versions >= 5.4. That error is triggered when $res is NULL or not yet initialized:
$res = NULL;
$res->success = false; // Warning: Creating default o...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
The indexer into Dictionary throws an exception if the key is missing. Is there an implementation of IDictionary that instead will return default(T) ?
...
How to do multiple line editing?
...o Toggle block selection (Toggle block / column selection in the current text editor), this will let you write vertically in eclipse, then you can easily do this.
Go to Window->Preferences.
Find for binding in text box surrounded by red box.
...
Android: When should I use a Handler() and when should I use a Thread?
...ou are doing is "heavy" you should be doing it in a Thread. If you do not explicitly start it in its own thread, then it will run on the main (UI) thread which may be noticeable as jittery or slow to respond interface by your users.
Interestingly when you are using a thread it is often useful to a...
Can I access a form in the controller?
... I thought I'd spell it out a bit for those using the "Controller As" syntax:
<div ng-controller="MyController as ctrl">
<form name="ctrl.myForm">
...inputs
Dirty? {{ctrl.myForm.$dirty}}
<button ng-click="ctrl.saveChanges()">Save</button>
</form>
</di...
What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4
...hat I can use the System.Data.SQLite framework which is compiled against 2.X. I see mention of this being possible such as the accepted answer here but I don't see how to actually achieve this.
...
How do I copy a string to the clipboard on Windows using Python?
...ing methods along with other cool stuff.
If all you need is to put some text to system clipboard, this will do it:
from Tkinter import Tk
r = Tk()
r.withdraw()
r.clipboard_clear()
r.clipboard_append('i can has clipboardz?')
r.update() # now it stays on the clipboard after the window is closed
r.de...
snprintf and Visual Studio 2010
...lier versions you can simulate it as below.
Long version:
Here is the expected behavior for snprintf:
int snprintf( char* buffer, std::size_t buf_size, const char* format, ... );
Writes at most buf_size - 1 characters to a buffer. The resulting
character string will be terminated with a ...
Comparing numbers in Bash
...
In bash, you should do your check in arithmetic context:
if (( a > b )); then
...
fi
For POSIX shells that don't support (()), you can use -lt and -gt.
if [ "$a" -gt "$b" ]; then
...
fi
You can get a full list of comparison operators with help test or man test....