大约有 45,000 项符合查询结果(耗时:0.0456秒) [XML]
Proper Repository Pattern Design in PHP?
...ow in order to be used by my controller. Remember, my controller will not know where the data is actually stored.
Note that my repositories will only every contain these three methods. The save() method is responsible for both creating and updating users, simply depending on whether or not the user...
Is it possible to implement a Python for range loop without an iterator variable?
...munity wiki
7 revs, 3 users 87%Unknown
4
...
__getattr__ on a module
...module replace sys.modules[__name__] with an instance of your class -- and now you can play with __getattr__/__setattr__/__getattribute__ as needed.
Note 1: If you use this functionality then anything else in the module, such as globals, other functions, etc., will be lost when the sys.modules as...
Detect & Record Audio in Python
... had is whether there is a way to define the time period of the recording. Now it records a word? Can I play with it and have a record period of e.g. 10 seconds? Thanks!
– Swan87
Apr 6 '16 at 14:26
...
Formatting numbers (decimal places, thousands separators, etc) with CSS
...egant approach, and since it is still impossible to achieve with CSS as of now, should be the number 1 answer!
– FMA
Jan 12 '19 at 12:40
add a comment
|
...
Is there a performance difference between a for loop and a for-each loop?
...
Yes, but that counter is now visible outside of the loop. Sure, it's a simple fix but so is for-each!
– Indolering
Nov 4 '12 at 5:19
...
PowerShell script to return versions of .NET Framework on a machine?
...0 ...
EDIT: For .Net 4.5 and up, this changed slightly again, so there's now a nice MSDN article here explaining how to convert the Release value to a .Net version number, it's a total train wreck :-(
This looks right to me (note that it outputs separate version numbers for WCF & WPF on 3.0. ...
Why is __init__() always called after __new__()?
...it__ takes self as parameter. Until you create instance there is no self.
Now, I gather, that you're trying to implement singleton pattern in Python. There are a few ways to do that.
Also, as of Python 2.6, you can use class decorators.
def singleton(cls):
instances = {}
def getinstance(...
Elegant way to invert a map in Scala
... different keys associated with same values. So, if you are interested in knowing all the keys, here's the code:
scala> val m = Map(1 -> "a", 2 -> "b", 4 -> "b")
scala> m.groupBy(_._2).mapValues(_.keys)
res0: Map[String,Iterable[Int]] = Map(b -> Set(2, 4), a -> Set(1))
...
List goals/targets in GNU make that contain variables in their definition
...vial makefile, dummy.mk, with these contents:
__all_targets__: ; #no-op
Now invoke make as make -p -f Makefile -f dummy.mk __all_targets__. On any substantial build, the difference in the amount of output generated by make is significant. For example:
$ gmake -pn | wc
138985 2632330 69612711
...