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Why can't I define a default constructor for a struct in .NET?
...seful in some scenarios involving Reflection. Also, if generics were ever enhanced to allow a parameterized "new" constraint, it would be useful to have structs that could comply with them.
– supercat
Feb 24 '12 at 1:39
...
CMake使用教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...兴趣的可以试用一下。
准备活动：
（1）安装cmake。
下载地址：http://www.cmake.org/cmake/resources/software.html
根据自己的需要下载相应的包即可，Windows下可以下载zip压缩的绿色版本，还可以下载源代码。
（2）运行cmake的方法。...
Java, How do I get current index/key in “for each” loop [duplicate]
...
That's true, but as much as I love the enhanced for-each loop introduced in Java5, doesn't supplying your own index defeat the purpose of simply using the traditional for-each construct? Using what's built into Java will often be more intuitive / readable (though...
Differences between Proxy and Decorator Pattern
...t are invisible and unknown to the client. Decorator does the opposite: it enhances what its delegate does in a way that is visible to clients.
We might say that Proxy is a black box while Decorator is a white box.
The composition relationship between wrapper and delegate is the wrong relationship...
Gradients in Internet Explorer 9
... if you're using anything in CSS3, you're doing what's called "progressive enhancement" - the browsers with the most support get the best experience. The other part of that is "graceful degradation" meaning the experience will be agreeable but perhaps not the best or most attractive until that brows...
浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...1460，所以「cwnd」的初始值是3MSS。
当我们浏览视频或者下载软件的时候，「cwnd」初始值的影响并不明显，这是因为传输的数据量比较大，时间比较长，相比之下，即便慢启动阶段「cwnd」初始值比较小，也会在相对很短的时间...
苹果全球开发者大会：无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
...设备的发布正式推出，而面向非开发者的beta版在7月就能下载体验。
苹果在iPad的iOS 9中加入了分屏多任务功能。该功能主要分为三项：SlideOver、Split View和画中画。
为了实现SlideOver，苹果重新设计了双击Home键后出现的任务管理...
How to see full symlink path
...tf("%s ->", $1); system("readlink -f " $1)}'
Will display e.g.
thin_repair ->/home/user/workspace/boot/usr/bin/pdata_tools
thin_restore ->/home/user/workspace/boot/usr/bin/pdata_tools
thin_rmap ->/home/user/workspace/boot/usr/bin/pdata_tools
thin_trim ->/home/user/workspace/boot/u...
How to move columns in a MySQL table?
...LTER TABLE Employees MODIFY COLUMN empName VARCHAR(50) AFTER department;
EDIT
Per the comments, you can also do this:
ALTER TABLE Employees CHANGE COLUMN empName empName VARCHAR(50) AFTER department;
Note that the repetition of empName is deliberate. You have to tell MySQL that you want to kee...
How to run a Python script in the background even after I logout SSH?
...ut every Linux/Unix system should have.
If you are on Ubuntu/Debian, its enhanced variant byobu is rather nice too.
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