大约有 38,433 项符合查询结果（耗时：0.0413秒） [XML]
How to submit a form with JavaScript by clicking a link?
...
8 Answers
8
Active
...
What does the caret operator (^) in Python do?
...
1
>>> 0^1
1
To explain one of your own examples:
>>> 8^3
11
Think about it this way:
1000 # 8 (binary)
0011 # 3 (binary)
---- # APPLY XOR ('vertically')
1011 # result = 11 (binary)
share
...
Why does Math.round(0.49999999999999994) return 1?
...
1. http://docs.oracle.com/javase/6/docs/api/java/lang/Math.html#round%28double%29
2. http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6430675 (credits to @SimonNickerson for finding this)
3. http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#round%28double%29
4. http://grep...
Git file permissions on Windows
...
answered Nov 27 '12 at 21:28
dedekdedek
6,21133 gold badges3131 silver badges6363 bronze badges
...
jQuery get the image src
...
answered Nov 12 '13 at 18:33
Stuart KershawStuart Kershaw
12.7k55 gold badges3333 silver badges4747 bronze badges
...
Determining 32 vs 64 bit in C++
...else
#define ENVIRONMENT32
#endif
#endif
// Check GCC
#if __GNUC__
#if __x86_64__ || __ppc64__
#define ENVIRONMENT64
#else
#define ENVIRONMENT32
#endif
#endif
Another easier route is to simply set these variables from the compiler command line.
...
What is the maximum characters for the NVARCHAR(MAX)?
I have declared a column of type NVARCHAR(MAX) in SQL Server 2008, what would be its exact maximum characters having the MAX as the length?
...
What is the purpose of the EBP frame pointer register?
I'm a beginner in assembly language and have noticed that the x86 code emitted by compilers usually keeps the frame pointer around even in release/optimized mode when it could use the EBP register for something else.
...
psql - save results of command to a file
...f commands will look like this:
[wist@scifres ~]$ psql db
Welcome to psql 8.3.6, the PostgreSQL interactive terminal
db=>\o out.txt
db=>\dt
db=>\q
share
|
improve this answer
|
...
What does SQL clause “GROUP BY 1” mean?
... |
edited Aug 20 '18 at 12:03
answered Sep 12 '11 at 19:12
...