大约有 15,000 项符合查询结果(耗时:0.0371秒) [XML]
Convert hex string to int in Python
....
Both strings will suffice for conversion in this way:
>>> string_1 = "0xffff"
>>> string_2 = "ffff"
>>> int(string_1, 16)
65535
>>> int(string_2, 16)
65535
Letting int infer
If you pass 0 as the base, int will infer the base from the prefix in the string.
>&...
How to reset postgres' primary key sequence when it falls out of sync?
...psql and run the following
-- What is the result?
SELECT MAX(id) FROM your_table;
-- Then run...
-- This should be higher than the last result.
SELECT nextval('your_table_id_seq');
-- If it's not higher... run this set the sequence last to your highest id.
-- (wise to run a quick pg_dump first.....
Cross field validation with Hibernate Validator (JSR 303)
...ation.Documented;
import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.ElementType.TYPE;
import java.lang.annotation.Retention;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Target;
/**
* Validation annotation ...
How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
...
I think you're looking for dispatch_after(). It requires your block to accept no parameters, but you can just let the block capture those variables from your local scope instead.
int parameter1 = 12;
float parameter2 = 144.1;
// Delay execution of my block ...
NUnit Test Run Order
...
You mean you called your tests, for example, 001_first_test 002_second_test and so on?
– ashes999
Feb 15 '12 at 20:48
...
Duplicating a MySQL table, indices, and data
...oldtable;
To copy just structure and data use this one:
CREATE TABLE tbl_new AS SELECT * FROM tbl_old;
I've asked this before:
Copy a MySQL table including indexes
share
|
improve this answer
...
How to read a large file line by line?
...ne from the file.
echo $file->fgets();
}
// Unset the file to call __destruct(), closing the file handle.
$file = null;
share
|
improve this answer
|
follow
...
How do you serialize a model instance in Django?
...ango.core import serializers
# assuming obj is a model instance
serialized_obj = serializers.serialize('json', [ obj, ])
share
|
improve this answer
|
follow
...
Does Javascript pass by reference? [duplicate]
...y value:
function replace(ref) {
ref = {}; // this code does _not_ affect the object passed
}
function update(ref) {
ref.key = 'newvalue'; // this code _does_ affect the _contents_ of the object
}
var a = { key: 'value' };
replace(a); // a still has its original value - it's un...
Why does javascript replace only first instance when using replace? [duplicate]
...al meaning in regexen — the JavaScript idiom for that is:
var id= 'c_'+date.split('/').join('');
share
|
improve this answer
|
follow
|
...
