大约有 42,000 项符合查询结果（耗时：0.0727秒） [XML]
A field initializer cannot reference the nonstatic field, method, or property
...
@Andrew Not true at all, Many decisions are made to forbid bad practices. even though they can, theoretically, be implemented, some guarded by Warnings, and some are plain Errors. and i think that this is one of these cases... even though the standard says it's sequencial, even an...
Match multiple cases classes in scala
...ng) => println(aString)"? Seems like as long as the type of aString is identical for both A and B, it should be allowed. Your last example seems like it would be better off not duplicating the B and C cases.
– James Moore
Nov 9 '11 at 1:18
...
When saving, how can you check if a field has changed?
...
Essentially, you want to override the __init__ method of models.Model so that you keep a copy of the original value. This makes it so that you don't have to do another DB lookup (which is always a good thing).
class Person(models.Model):
name = mode...
How to keep/exclude a particular package path when using proguard?
...
Double asterisks (**) doesn't compile anymore (Android Studio 4.0)
– Daniel
Jun 24 at 22:49
2
...
What is the full path to the Packages folder for Sublime text 2 on Mac OS Lion
...this question anywhere so I can only assume I'm doing something really stupid but...
5 Answers
...
C# Iterate through Class properties
...
@Cordell, how did you do that? I tried property.GetValue() but it asks for an object as parameter.
– user7792598
Aug 16 '18 at 19:52
...
How can I set the Sender's address in Jenkins?
...l without writing custom scripts to send email.
– insider
Mar 13 '19 at 10:30
add a comment
|
...
How to prevent multiple instances of an Activity when it is launched with different Intents
...g the "Open" button on the Google Play Store app (previously called Android Market). It seems that launching it from the Play Store uses a different Intent than launching it from the phone's application menu of icons. This is leading to multiple copies of the same Activity being launched, which ...
Renaming table in rails
... Thanks that worked! I'm still puzzled why the previous line didn't though. Oh well..
– Tommy
Jan 8 '11 at 0:55
...
What is a memory fence?
... How does it influence the flow of the reordering? When you said, Alpha is known for being the weakest, why weakest? Is not it better that, it reorder more, so as result it will be much faster execution? (I am not alpha user, but asking about the effect of very reordering vs restricted ...