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PHP - Move a file into a different folder on the server
...
The rename function does this
docs rename
rename('image1.jpg', 'del/image1.jpg');
If you want to keep the existing file on the same place you should use copy
docs copy
copy('image1.jpg', 'del/image1.jpg');
If you want to move an uploaded file use the move_uploaded_file, althoug...
菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...fault
CMenu *Menu=GetMenu();
ClientToScreen(&point);//将窗口坐标转换成屏幕坐标
Menu->GetSubMenu(0)->TrackPopupMenu(
TPM_LEFTBUTTON|TPM_VERTICAL,point.x,point.y,this);
Menu->Detach();
CDialog::OnRButtonUp(nFlags, point);
}
要注意的是，要在界面显示的菜单...
浅谈HTML5 & CSS3的新交互特性 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的主要语言。通过这种语言，我们可以向计算机说明网页格式、内容、显示效果等等。而CSS则是专门用来控制网页显示效果的语言。这时候问题出来了，为什么我们要单独使用CSS呢，HTML不是一样可以控制Web页面的显示效果么？...
可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术
...全的同时被多个线程调用，那么，这个不可重入函数就是转换成了线程安全。
线程安全，描述的是函数能同时被多个线程安全的调用，并不要求调用函数的结果具有可再现性。也就是说，多个线程同时调用该函数，允许出现互...
Recursive sub folder search and return files in a list python
...return subfolders, files
subfolders, files = run_fast_scandir(folder, [".jpg"])
Speed analysis
for various methods to get all files with a specific file extension inside all subfolders and the main folder.
tl;dr:
- fast_scandir clearly wins and is twice as fast as all other solutions, exce...
Get value of a string after last slash in JavaScript
...escape backslashes)
// if str is C:\windows\file system\path\picture name.jpg
alert( str.split('\\').pop() );
alert pops up with picture name.jpg
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Automatic Retina images for web sites
...vascript or CSS needed, no double loading of images.
<img src="low-res.jpg" srcset="high-res.jpg 2x">
Browser Support: http://caniuse.com/#search=srcset
Other Resources:
WebKit release post
W3C documentation for srcset
good explanation about why and how to use srcset
Chris Coyer's post fo...
Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...息。消息队列克服了信号承载信息量少，管道只能承载无格式字节流以及缓冲区大小受限等缺点。
以下是消息队列的创建、消息的发送和接收的函数：
#include <sys/msg.h>
int msgget(key_t key, int flag);
int msgsnd(int msgid, const void *ptr, s...
Rails: How to reference images in CSS within Rails 4
...:
.some-div {
background-image: url(image-path('pretty-background-image.jpg'));
}
When you launch the application in development mode (localhost:3000), you should see something like:
background-image: url("/assets/pretty-background-image.jpg");
In production mode, your assets will have the...
Detect when an image fails to load in Javascript
...{
alert('That image was not found.');
}
testImage("http://foo.com/bar.jpg");
And my sympathies for the jQuery-resistant boss!
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