大约有 42,000 项符合查询结果（耗时：0.0618秒） [XML]
Django - How to rename a model field using South?
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231
You can use the db.rename_column function.
class Migration:
def forwards(self, orm):
...
What is the canonical way to check for errors using the CUDA runtime API?
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312
Probably the best way to check for errors in runtime API code is to define an assert style han...
How to use LocalBroadcastManager?
...er in ReceiverActivity.
The debug output should look like this:
01-16 10:35:42.413: D/sender(356): Broadcasting message
01-16 10:35:42.421: D/receiver(356): Got message: This is my message!
share
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Dismiss keyboard by touching background of UITableView
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203
This is easily done by creating a UITapGestureRecognizer object (by default this will detect a "...
Avoiding “resource is out of sync with the filesystem”
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324
You can enable this in Window - Preferences - General - Workspace - Refresh Automatically (cal...
How to move out of auto-completed brackets in IntelliJ IDEA (without using the arrow keys)?
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CrazyCoderCrazyCoder
331k126126 gold badges840840 silver badges764764 bronze badges
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Idiomatic way to wait for multiple callbacks in Node.js
...romise.resolve(1);
var b = Promise.resolve(2);
var c = Promise.resolve(3);
var res = yield [a, b, c];
console.log(res);
// => [1, 2, 3]
}).catch(onerror);
// errors can be try/catched
co(function *(){
try {
yield Promise.reject(new Error('boom'));
} catch (err) {
console.er...
Benefits of EBS vs. instance-store (and vice-versa) [closed]
...an EBS backed instance because the image does not have to be fetched from S3.
If the hardware your EBS-backed instance is scheduled for maintenance, stopping and starting the instance automatically migrates to new hardware. I was also able to move an EBS-backed instance on failed hardware by force-s...
What programming practice that you once liked have you since changed your mind about? [closed]
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community wiki
3 revs, 2 users 96%Luke Baulch
...
What is the difference between dynamic and static polymorphism in Java?
...]) {
Calculation obj=new Calculation();
obj.sum(10,10,10); // 30
obj.sum(20,20); //40
}
}
overriding example:
class Animal {
public void move(){
System.out.println("Animals can move");
}
}
class Dog extends Animal {
public void move() {
Syste...