大约有 40,000 项符合查询结果（耗时：0.0197秒） [XML]
Why do I need 'b' to encode a string with Base64?
..., base64 encoding has to do the encoding in the opposite direction (so the raw data is converted to 'dGVzdA') and also has a rule to tell other applications how much space is left off at the end. This is done by padding the end with '=' symbols. So, the base64 encoding of this data is 'dGVzdA==', wi...
Understanding colors on Android (six characters)
I am trying to understand how colors work in Android. I have this color set as the background of my LinearLayout , and I get a background gray with some transparency:
...
Embedded MongoDB when running integration tests
...
Active
Oldest
Votes
...
SQL/mysql - Select distinct/UNIQUE but return all columns?
...
Active
Oldest
Votes
...
How can I play sound in Java?
...lename) {
this.loop = false;
try {
InputStream raw = Object.class.getResourceAsStream(filename);
stream = new BufferedInputStream(raw);
// ByteArrayOutputStream out = new ByteArrayOutputStream();
// byte[] buffer = new byte[1024];
...
How to check if a string is a valid hex color representation?
...
Active
Oldest
Votes
...
GitHub README.md center image
...e worried about not using too much github bandwith, you can give a look to Raw Git, that serves files stored on GitHub, caching them on their system. So, just one access is performed on the resource on GitHub, saving their bandwith.
– danidemi
Feb 15 '15 at 13:...
Why all the Active Record hate? [closed]
...it's ugly, but for the cases where you just plain and simply need to write raw SQL, it's easily done.
@Tim Sullivan
...and you select several instances of the model, you're basically doing a "select * from ..."
Code:
people = Person.find(:all, :select=>'name, id')
This will only sel...