大约有 40,000 项符合查询结果（耗时：0.0302秒） [XML]
mmap() vs. reading blocks
I'm working on a program that will be processing files that could potentially be 100GB or more in size. The files contain sets of variable length records. I've got a first implementation up and running and am now looking towards improving performance, particularly at doing I/O more efficiently since...
'UserControl' constructor with parameters in C#
Call me crazy, but I'm the type of guy that likes constructors with parameters (if needed), as opposed to a constructor with no parameters followed by setting properties. My thought process: if the properties are required to actually construct the object, they should go in the constructor. I get two...
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...ff using decimal numbers is A LOT more intuitive (we have 10 fingers after all - at least most of us), so declaring a number of something using hexadecimals seems like an unnecessary code obfuscation.
– Andrew Cyrul
Apr 13 '17 at 9:27
...
Check if $_POST exists
...sts and if it does, print it inside another string, if not, don't print at all.
14 Answers
...
What is the difference between Python's list methods append and extend?
...
Actually there's a big difference - x + [4, 5] gives you a new list assigned to x - x.extend() mutates the original list. I elaborate in my answer here below.
– Aaron Hall♦
Jul 17 '17 at 1...
泡在Stack Overflow答题30天 - 创意 - 清泛网 - 专注C/C++及内核技术
...答案需要改进的地方。
总结
如果你是Stack Overflow的开发人员或者用户（或者任何相关人员），创建一个用户并且保持在线。既然你能从这个网站中找到有用的东西，为什么不使用它的一些内置反馈机制从而提高网站的水平...
What is the best way to find the users home directory in Java?
... variants. I am looking for a snippet of code that can accomplish this for all platforms, and a way to detect the platform.
...
.gitignore for Visual Studio Projects and Solutions
...
community wiki
4 revs, 2 users 62%Chronial
9
...
Unnamed/anonymous namespaces vs. static functions
... this case using a static or an unnamed namespace are back to being essentially two ways of doing the exact same thing. For more discussion please see this SO question.
Unnamed namespaces still have the advantage of allowing you to define translation-unit-local types. Please see this SO question ...
分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...。
3）数据一致性的问题又会引发性能问题
这就是软件开发，按下了葫芦起了瓢。
一致性模型
说起数据一致性来说，简单说有三种类型（当然，如果细分的话，还有很多一致性模型，如：顺序一致性，FIFO一致性，会话一致...