大约有 46,000 项符合查询结果（耗时：0.0503秒） [XML]
Why is char[] preferred over String for passwords?
...the usual getText() (returns String ) method. Similarly, I have come across a suggestion not to use String to handle passwords.
...
To ARC or not to ARC? What are the pros and cons? [closed]
...y of the code in the project I'm working on at the moment was written pre-iOS 5.0.
6 Answers
...
Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
... if index in mylist tests wether index is an element of mylist, not a possible index. You would want if index < len(mylist) instead.
– ychaouche
Jun 24 '13 at 16:40
...
Why are dates calculated from January 1st, 1970?
...
It is the standard of Unix time.
Unix time, or POSIX time, is a system for describing points in time, defined as the number of seconds elapsed since midnight proleptic Coordinated Universal Time (UTC) of January 1, 1970, not counting leap seconds.
...
What does -D_XOPEN_SOURCE do/mean?
...e definitions for some extra functions that are defined in the X/Open and POSIX standards.
This will give you some extra functionality that exists on most recent UNIX/BSD/Linux systems, but probably doesn't exist on other systems such as Windows.
The numbers refer to different versions of the stan...
Exclude folders from Eclipse search
...
Here is what works for me (I'm using Helios - maybe this way was not available when this question was originally asked?)
Go to Project -> Properties -> Resource Filters.
Click Add.
Choose Filter type: Exclude all
Choose Applies to: Folders; check All childre...
Copy paste text into iOS simulator
...ator's clipboard. They are not the same.
The simulator is simulating an iOS device, with it's own iOS clipboard which apps running on that device (simulator) use via the iOS pup-up select-all/copy/paste UI items.
Completely separate from that: your mac has it's own clipboard and content. The Simu...
socket.shutdown vs socket.close
...r required,
the calling program can discard the
socket by applying a close subroutine
to the socket descriptor. If a
reliable delivery socket has data
associated with it when a close takes
place, the system continues to attempt
data transfer. However, if the data is
still undelivered...
How to import classes defined in __init__.py
...ject
Helper in lib.foo.someobject
# ./import_submodule.py
import fnmatch, os
from lib.settings import Values
from lib import Helper
print
for root, dirs, files in os.walk('.'):
for f in fnmatch.filter(files, '*.py'):
print "# %s/%s" % (os.path.basename(root), f)
print open(os.p...
What is the difference between a thread and a fiber?
...
In the most simple terms, threads are generally considered to be preemptive (although this may not always be true, depending on the operating system) while fibers are considered to be light-weight, cooperative threads. Both are separ...