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Declaration/definition of variables locations in ObjectiveC?
...:(id)value {
Ivar ivar = class_getInstanceVariable([self class], [name UTF8String]);
object_setIvar(self, ivar, value);
}
- (id) getIvar:(NSString*)name {
Ivar ivar = class_getInstanceVariable([self class], [name UTF8String]);
id thing = object_getIvar(self, ivar);
return thing;...
How to show a confirm message before delete?
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@CiroSantilli巴拿馬文件六四事件法轮功 It's already the case thanks to the event.preventDefault() function. You can replace the hash char with a url, it won't be triggered. But, if JavaScript is disabled the link will work as expected.
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MFC OnEraseBkgnd浅析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...工重载
在要重载的类（通常为CView的子类）声明部分(.h文件)添加虚函数的声明：
virtual BOOL OnEraseBkgnd(CDC* pDC);
注意添加在//{{AFX_VIRTUAL(CMyView)和//}}AFX_VIRTUAL之间。
在类的定义文件(.cpp)中的MESSAFE_MAP部分，//{{AFX_MSG_MAP(CMyView)和 //...
Linux 进程卡住了怎么办？ - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...程来模拟一下（因为 JuiceFS 客户端基于 FUSE，是用户态的文件系统，比较容易模拟 I/O 故障）。
先将 JuiceFS 挂载到前台（在 ./juicefs mount 命令中加一个 -f 参数），然后用 Cltr+Z 把这个进程停掉，这时候用 ls /jfs 去访问挂载点，会...
How to use “/” (directory separator) in both Linux and Windows in Python?
...roblems in os, and it makes everything easier. Ex path.read_text(encoding="utf8"), path.read_bytes(), path.resolve(), path.unlink(), ...
– Douglas Myers-Turnbull
Sep 22 at 20:06
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GUI-based or Web-based JSON editor that works like property explorer [closed]
...ta = { arbitrary structure in here };
my $json_handler = JSON::Any->new(utf8=>1);
my $json_string = $json_handler->objToJson($data);
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Passing parameters in rails redirect_to
...path(request.parameters.except(:authenticity_token, :controller, :action, :utf8, :commit)
– mr i.o
Jun 16 '16 at 21:18
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Is quitting an application frowned upon?
...ncept did not catch on much, outside of language extensions to apps (e.g., VBA in Excel, Lisp in AutoCAD). Developers who came up with mental models that presumed the existence of development tools in the app itself, therefore, either had to change their model or limit themselves to environments whe...
How to add new column to MYSQL table?
... TABLE $your_table ADD $your_column VARCHAR(100) CHARACTER SET utf8 NOT NULL " //you can add positioning phraze: "AFTER My_another_column"
);}
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How can I import a database with MySQL from terminal?
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From Terminal:
mysql -uroot -p --default-character-set=utf8 database_name </database_path/database.sql
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