大约有 46,000 项符合查询结果（耗时：0.0800秒） [XML]
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...ample outputs will be like:
E302D66D-87E3-4450-8CB6-17531895BF14
22D288BC-7289-442B-BEEA-286777D559F2
51B4DE29-3B71-4FD2-9E6C-071703E1FF31
3777C8C6-9FF5-4C78-AAA2-08A47F555E81
54B91C72-2CF4-4501-A6E9-02A60DCBAE4C
60F75C7C-1AE3-417B-82C8-14D456542CD7
8DE0168D-01D3-4502-9E59-10D665CEBCB2
hope it he...
Are Exceptions in C++ really slow
...for more details, read the TR18015 report, chapter 5.4 Exception Handling (pdf)
So, yes, exceptions are slow on the exceptional path, but they are otherwise quicker than explicit checks (if strategy) in general.
Note: Andrei Alexandrescu seems to question this "quicker". I personally have seen thi...
What's wrong with cplusplus.com?
...
72
Edit: Documentation for std::remove has been fixed since this answer was written. Same thing ap...
Which characters need to be escaped when using Bash?
...q
0A E $'\n' 24 E \$ 3E E \> 58 - X 72 - r
0B E $'\v' 25 - % 3F E \? 59 - Y 73 - s
0C E $'\f' 26 E \& 40 - @ 5A - Z 74 - t
0D E $'\r' 27 E \' 41 - A 5B E \...
What is the most efficient string concatenation method in python?
...
Alex MartelliAlex Martelli
724k148148 gold badges11261126 silver badges13241324 bronze badges
...
When to use SELECT … FOR UPDATE?
...:15
Gili
72.3k7575 gold badges325325 silver badges598598 bronze badges
answered May 7 '13 at 18:00
QuassnoiQua...
Is .NET Remoting really deprecated?
...y is a more accurate description.
http://msdn.microsoft.com/en-us/library/72x4h507%28VS.85%29.aspx
This topic is specific to a legacy
technology that is retained for
backward compatibility with existing
applications and is not recommended
for new development. Distributed
applications ...
What is the difference between pip and conda?
...
asmeurerasmeurer
72.5k2222 gold badges141141 silver badges212212 bronze badges
...
Why does this assert throw a format exception when comparing structures?
...
BlueRaja - Danny Pflughoeft
72.3k2525 gold badges169169 silver badges251251 bronze badges
answered Feb 19 '13 at 20:42
Jon SkeetJ...
mysql实现split分割字符串（length, SUBSTRING_INDEX, substring） - 爬虫/...
由于MySql没有直接的split函数，只提供了length, SUBSTRING_INDEX, substring三个函数，这里介绍如何用这三个函数实现split功能。
# SUBSTRING_INDEX(str, delim, count)：返回字符串 str 中在第 count 个出现的分隔符 delim 之前的子串。如果 count 是...