大约有 40,000 项符合查询结果（耗时：0.0577秒） [XML]
What is the dependency inversion principle and why is it important?
...
Check this document out: The Dependency Inversion Principle.
It basically says:
High level modules should not depend upon low-level modules. Both should depend upon abstractions.
Abstractions should never depend upon details. Details should depend upon abstractions.
As to why it is importa...
How to convert Nonetype to int or string?
I've got an Nonetype value x , it's generally a number, but could be None . I want to divide it by a number, but Python raises:
...
What is the maximum length of a Push Notification alert text?
... thing the documentation says is:
In iOS 8 and later, the maximum size allowed for a notification payload is 2 kilobytes; Apple Push Notification Service refuses any notification that exceeds this limit. (Prior to iOS 8 and in OS X, the maximum payload size is 256 bytes.)
This is what I could ...
Better way to revert to a previous SVN revision of a file?
I accidentally committed too many files to an SVN repository and changed some things I didn't mean to. (Sigh.) In order to revert them to their prior state, the best I could come up with was
...
How to SSH to a VirtualBox guest externally through a host? [closed]
...ows 7 machine. How do I set it up so that I can access the webserver externally through SSH?
15 Answers
...
How to measure elapsed time in Python?
...
If you just want to measure the elapsed wall-clock time between two points, you could use time.time():
import time
start = time.time()
print("hello")
end = time.time()
print(end - start)
This gives the execution time in seconds.
Another option since 3.3 might ...
How to force garbage collection in Java?
...
Your best option is to call System.gc() which simply is a hint to the garbage collector that you want it to do a collection. There is no way to force and immediate collection though as the garbage collector is non-deterministic.
...
z-index not working with fixed positioning
...
This question can be solved in a number of ways, but really, knowing the stacking rules allows you to find the best answer that works for you.
Solutions
The <html> element is your only stacking context, so just follow the stacking rules inside a stacking context and you w...
Python Regex instantly replace groups
Is there any way to directly replace all groups using regex syntax?
2 Answers
2
...
How do I get LaTeX to hyphenate a word that contains a dash?
...mmand a command that expands to multi-discipli\-nary (use Search + Replace All to replace existing words).
share
|
improve this answer
|
follow
|
...