大约有 40,000 项符合查询结果(耗时:0.0581秒) [XML]
HTML 5 tag vs Flash video. What are the pros and cons?
...S. You won't change business overnight, and each layer of complexity added by a new tag such as <video> which supports a very technical interface will result in * slightly * different implementations by each browser.
HTML 5 works now, and so does Flash. How it is implemented, the skill it r...
“Git fatal: ref HEAD is not a symbolic ref” while using maven release plugin
...ame error on Jenkins in combination with maven release plugin, we fixed it by going to Additional behaviours, Check out to specific local branch and enter 'master'
I realise this is not a solution but it might give you some direction in where to look.
...
Why is Multiple Inheritance not allowed in Java or C#?
...s just say, multiple inheritance is not allowed. But it can be implemented by using interfaces. Nothing is discussed about why it is not allowed. Can anybody tell me precisely why it is not allowed?
...
iOS: Access app-info.plist variables in code
...
Attributes from the info.plist for your project are directly accessible by the following...
[[NSBundle mainBundle] objectForInfoDictionaryKey:key_name];
For example to get the version number you might do the following
NSString *appVersion = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"...
how to override action bar back button in android?
...
By this technique the back arrow button is responding late. Means i have to wait for a second to get event fired. Also not appearing the selector on this button for the effect while pressing it
– Gopal S...
When to use virtual destructors?
... pointer, you can make the base class destructor protected and nonvirtual; by doing so, the compiler won't let you call delete on a base class pointer.
You can learn more about virtuality and virtual base class destructor in this article from Herb Sutter.
...
What is Python buffer type for?
...be necessary when using large amounts of data. This example uses a mutable bytearray:
>>> s = bytearray(1000000) # a million zeroed bytes
>>> t = buffer(s, 1) # slice cuts off the first byte
>>> s[1] = 5 # set the second element in s
>>>...
What causes javac to issue the “uses unchecked or unsafe operations” warning
...yList<String>();
In Java 7 you can shorten generic instantiation by using Type Inference.
List<String> myList = new ArrayList<>();
share
|
improve this answer
|
...
What's better at freeing memory with PHP: unset() or $var = null
...iate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the script would run out of memory, whatever occurs first.
If you are doing $whatever = null; then you are rewriting variable's data. You mi...
Purpose of Trigraph sequences in C++?
...endum:
It looks like GCC will not process (and will warn about) trigraphs by default. Some other compilers have options to turn off trigraph support (IBM's for example). Microsoft started supporting a warning (C4837) in VS2008 that must be explicitly enabled (using -Wall or something).
...
