大约有 47,000 项符合查询结果（耗时：0.0786秒） [XML]
Best practices for styling HTML emails [closed]
...ewsletter. I've learned that many email clients ignore linked stylesheets, and many others (including Gmail) ignore CSS block declarations altogether. Are inline style attributes my only choice? What are the best practices for styling HTML emails?
...
Java executors: how to be notified, without blocking, when a task completes?
... of the task.
You could even write a general wrapper for Runnable tasks, and submit these to ExecutorService. Or, see below for a mechanism built into Java 8.
class CallbackTask implements Runnable {
private final Runnable task;
private final Callback callback;
CallbackTask(Runnable task...
What is the difference between MediaPlayer and VideoView in Android
...
Was asking the same question and as I understood from what Mark (CommonsWare) advised on numerous threads here, VideoView is a wrapper (200 hundred lines of code) for MediaPlayer and SurfaceView to provide embedded controls.
He also kindly shared some e...
What is a “callback” in C and how are they implemented?
From the reading that I have done, Core Audio relies heavily on callbacks (and C++, but that's another story).
9 Answers
...
background:none vs background:transparent what is the difference?
...fy a value for any of the half-dozen properties that background is a shorthand for, then it is set to its default value. none and transparent are the defaults.
One explicitly sets the background-image to none and implicitly sets the background-color to transparent. The other is the other way around...
MySQL: Quick breakdown of the types of joins [duplicate]
...ma separated example you gave of
SELECT * FROM a, b WHERE b.id = a.beeId AND ...
is selecting every record from tables a and b with the commas separating the tables, this can be used also in columns like
SELECT a.beeName,b.* FROM a, b WHERE b.id = a.beeId AND ...
It is then getting the instru...
How can I check if the current date/time is past a set date/time?
...ed according to these rules.
Note that it is also possible to use time and strtotime functions. See original answer.
share
|
improve this answer
|
follow
|...
What can be the reasons of connection refused errors?
... its backlog of pending connections is full.
A firewall between the client and server is blocking access (also check local firewalls).
After checking for firewalls and that the port is open, use telnet to connect to the ip/port to test connectivity. This removes any potential issues from your appl...
What is the use for IHttpHandler.IsReusable?
I'm writing a IHttpHandler and I'll need to implement a IsReusable property. When I look at the MSDN documentation it says:
...
How to configure IntelliJ (also Android Studio) redo shortcut to CTRL+Y instead of CTRL+SHIFT+Z?
The default IntelliJ / Android Studio "Redo" action shortcut is CTRL + Shift + Z and this is a common problem for Windows users.
...