大约有 47,000 项符合查询结果(耗时:0.1529秒) [XML]
Android Studio Stuck at Gradle Download on create new project
...he android studio. It just makes android studio a more fragmented software now with all pieces here and there.
– Ankit Tanna
May 23 '15 at 5:54
...
What's the difference between an object initializer and a constructor?
...bject calling default constructor
tmp.Name = "a";
tmp.Age = 23;
p = tmp;
Now this facilitates behaviour like this. Knowing how object initializers work is important.
share
|
improve this answer
...
How to simulate the environment cron executes a script with?
...e, turn it back off, then run
env - `cat ~/cronenv` /bin/sh
And you are now inside a sh session which has cron's environment
Bring your environment to cron
You could skip above exercise and just do a . ~/.profile in front of your cron job, e.g.
* * * * * . ~/.profile; your_command
Use screen
...
How do I copy a string to the clipboard on Windows using Python?
...clipboard_clear()
r.clipboard_append('i can has clipboardz?')
r.update() # now it stays on the clipboard after the window is closed
r.destroy()
And that's all, no need to mess around with platform-specific third-party libraries.
If you are using Python 3, replace TKinter with tkinter.
...
What is a mixin, and why are they useful?
...ass and class NewChildN(NewBehaviorMixin, ChildN): pass, etc. (PS: Do you know a better way?)
– RayLuo
Oct 18 '16 at 0:57
|
show 5 more comm...
Scala 2.8 breakOut
... happens, the types From, T and To have already been inferred, because we know that map is expecting CanBuildFrom[List[String], (Int, String), Map[Int, String]]. Therefore:
From = List[String]
T = (Int, String)
To = Map[Int, String]
To conclude let's examine the implicit received by breakOut itse...
Select which href ends with some string
... something changed recently. $('[href$=-abc]') used to work. Now it requires quotes $('[href$="-abc"]') I don't know when it changed. Maybe it was always supposed to require quotes and just happened to work before.
– gman
Jul 25 '11 at 7:34
...
argparse: identify which subparser was used [duplicate]
...re', help='name of app to process')
app_parser.set_defaults(which='app')
Now if you run
print parser.parse_args(["all"])
The result is
Namespace(which='all')
Check out the add_subparsers() documentation for more information and another example.
...
FileSystemWatcher Changed event is raised twice
...
I am afraid that this is a well-known bug/feature of the FileSystemWatcher class. This is from the documentation of the class:
You may notice in certain situations that a single creation event generates multiple Created events that are handled by your co...
Bulk insert with SQLAlchemy ORM
... 1.0.0:
Bulk operations - SQLAlchemy docs
With these operations, you can now do bulk inserts or updates!
For instance, you can do:
s = Session()
objects = [
User(name="u1"),
User(name="u2"),
User(name="u3")
]
s.bulk_save_objects(objects)
s.commit()
Here, a bulk insert will be made....