大约有 43,000 项符合查询结果（耗时：0.0300秒） [XML]
What's the difference between MyISAM and InnoDB? [duplicate]
...f select, insert, updates, concurrency requirements, replication features, etc.
The logical design of the database should be centered around data analysis and user requirements; the choice to use a relational database would come later, and even later would the choice of MySQL as a relational databa...
How can I get a Dialog style activity window to fill the screen?
...Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_layout);
getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
}
It's important that you call Window.setLayout() after you call setContentView(), o...
How to set tint for an image view programmatically in android?
...
You can change the tint, quite easily in code via:
imageView.setColorFilter(Color.argb(255, 255, 255, 255)); // White Tint
If you want color tint then
imageView.setColorFilter(ContextCompat.getColor(context, R.color.COLOR_YOUR_COLOR), android.graphics.PorterDuff.Mode.MULTIPLY);
For...
What exactly is node.js used for? [closed]
...deJS:
REST APIs and Backend Applications
Real-Time services (Chat, Games etc)
Blogs, CMS, Social Applications.
Utilities and Tools
Anything that is not CPU intensive.
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Eclipse cannot load SWT libraries
...path to the libraries:
echo "-Djava.library.path=/usr/lib/jni/" >> /etc/eclipse.ini
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Is it possible to style html5 audio tag?
... This is only supported by webkit-based browsers (e.g not Firefox, IE, etc.)
– gilad mayani
Oct 6 '16 at 12:35
2
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Reading and writing binary file
...t data as characters (don't use strlen() on it, don't print it to console, etc). c++17 introduces std::byte for this purpose (which is still char actually char in disguise)
– d.Candela
Apr 10 '18 at 15:25
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Check Whether a User Exists
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Why don't you simply use
grep -c '^username:' /etc/passwd
It will return 1 (since a user has max. 1 entry) if the user exists and 0 if it doesn't.
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MySQL select where column is not empty
... very difficult to debug :(
If you're using strings (char, varchar, text, etc.), then this will be perfectly be fine, just be careful with numerics.
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How do you force a CIFS connection to unmount
...ly. I tried everything else above and the cifs mount disappeared from my /etc/mtab listing but it cannot be remounted, so it's effectively useless. The cifs mount freezes when my computer suspends itself while the cifs share is mounted.
– DH4
Sep 23 '12 at 1...