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How to implement an abstract class in ruby?
...clarative about which methods are abstract:
module Abstract
def abstract_methods(*args)
args.each do |name|
class_eval(<<-END, __FILE__, __LINE__)
def #{name}(*args)
raise NotImplementedError.new("You must implement #{name}.")
end
END
# import...
MFC子窗口和父窗口（SetParent,SetOwner） - C/C++ - 清泛网 - 专注C/C++及内核技术
...己的子窗口(child)。在MFC 的CWnd类中，所有者窗口保存在m_hWndOwner成员变量中，父窗口则保存在m_hParent中，但是这两个值并不一定和窗口对象数据结构中的值相对应。
窗口之间的关系，决定了窗口的外在表现。比如显示、销毁等...
Explanation of strong and weak storage in iOS5
...lse". It's the "someone else" that is important.
Consider the following:
__strong id strongObject = <some_object>;
__weak id weakObject = strongObject;
Now we've got a two pointers to <some_object>, one strong and one weak. If we set strongObject to nil like so:
strongObject = nil;
...
Animate change of view controllers without using navigation controller stack, subviews or modal cont
...iewController{
[self addChildViewController:aNewViewController];
__weak __block ViewController *weakSelf=self;
[self transitionFromViewController:self.currentViewController
toViewController:aNewViewController
duration:1.0
...
Exception messages in English?
...ionLogger class looks something like:
class ExceptionLogger
{
Exception _ex;
public ExceptionLogger(Exception ex)
{
_ex = ex;
}
public void DoLog()
{
Console.WriteLine(_ex.ToString()); //Will display en-US message
}
}
However, as Joe correctly points out in a comment on an...
Mercurial .hgignore for Visual Studio 2010 projects
...lob syntax
syntax: glob
*.obj
*.pdb
*.user
*.aps
*.pch
*.vspscc
*.vssscc
*_i.c
*_p.c
*.ncb
*.suo
*.tlb
*.tlh
*.bak
*.[Cc]ache
*.ilk
*.log
*.lib
*.sbr
*.scc
*.DotSettings
[Bb]in
[Dd]ebug*/**
obj/
[Rr]elease*/**
_ReSharper*/**
NDependOut/**
packages/**
[Tt]humbs.db
[Tt]est[Rr]esult*
[Bb]uild[Ll]og.*
...
error LNK2019: 无法解析的外部符号 _Netbios@4,该符号在函数 中被引用 - C...
error LNK2019: 无法解析的外部符号 _Netbios@4,该符号在函数 中被引用解决方法如下：Cpp文件include语句之后加上如下代码：#pragma comment(lib,"netapi32.lib")解决方法如下：
Cpp文件include语句之后加上如下代码：
#pragma comment(lib,"netapi32.lib")
...
如何把一个POINT转化为lParam参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ARAM(pt.x, pt.y);反之：CPoint point(lParam);里面的实现是：CPoint(_In_ LPARAM dwPoint) throw();...ATLTYPES_INLINE CPoin...MAKELPARAM(pt.x, pt.y);
反之：
CPoint point(lParam);
里面的实现是：
CPoint(_In_ LPARAM dwPoint) throw();
...
ATLTYPES_INLINE CPoint::CPoint(_In...
phpcms后台表单多选统计不准确的解决方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...一次。
代码修改：
phpcms\modules\formguide\templates\formguide_stat.tpl.php
if(trim($__v[$v['field']])==trim($_kv)) $number++;
改为：
if(strpos(trim($__v[$v['field']]), trim($_kv)) !== false) $number++;
这样就完全OK了。phpcms 后台表单 多选统计
msvcr110d.dll!_CrtIsValidHeapPointer(const void * pUserData) 行 2036 ...
msvcr110d.dll!_CrtIsValidHeapPointer(const void * pUserData) 行 2036 错误解析可能原因：DLL和EXE主程序使用的不是同一个堆造成。解决办法：1. 采用谁分配谁释放的原则；2. 绕过 new 和 delete，使用 GlovalAlloc...
可能原因1：DLL和EXE主程序使用的...