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What is the best JavaScript code to create an img element
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var img = document.createElement('img');
img.src = 'my_image.jpg';
document.getElementById('container').appendChild(img);
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ContinuousSpeech 连续语音识别扩展：持续语音识别无需重复启动 · App Inventor 2 中文网
... 示例项目说明
示例应用演示了”将语音命令转换为红外遥控码”的功能：
在 OnPartialResult 事件中进行实时命令验证
识别到命令后临时关闭识别，避免后续语音输出被误识别
执行相应的红外发射操作
语音输...
Replace transparency in PNG images with white background
...g happens at all or I get an error. I don't want to go to an intermediate JPG form because I don't want the artifacts. Of course it's easy to do this in Gimp or Photoshop or whatever, but I'd really rather script it from the command line because there are many of these things.
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The Ruby %r{ } expression
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\. => contains a dot
(gif|jpg|jpeg|png) => then, either one of these extensions
$ => the end, nothing after it
i => case insensitive
And it's the same as writing /\.(gif|jpg|jpeg|png)$/i.
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ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...我们所需要的用于匹配的类，例如我们需要匹配一种时间格式，可以是h:mm、也可以是hh:mm，那么我们可以这样构造我们的CAtlRegExp类：
CAtlRegExp <> re;
re.Parse( "{[0-9]?[0-9]}:{[0-9][0-9]}" );
ATL的正则表达式语法和Perl的正则表达式...
App Launcher 应用启动器扩展：用于启动其他应用程序的强大工具，支持独立...
...应用程序返回一个键为 “APP_INVENTOR_RESULT” 的值，该值被转换为字符串并通过参数 Result 提供
getResultKeys 方法提供所有键值对的所有键值的列表
getResultValue 方法将与指定键关联的值作为 String 返回
getResultObject 方法将与指定...
How to delete a file via PHP?
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$files = [
'./first.jpg',
'./second.jpg',
'./third.jpg'
];
foreach ($files as $file) {
if (file_exists($file)) {
unlink($file);
} else {
// File not found.
}
}
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Posting a File and Associated Data to a RESTful WebService preferably as JSON
...erver:
POST: /projects/{project_id}/photos
body: { name: "some_schema.jpg", comment: "blah"}
response: photo_id
Upload file (note that file is in singular form because it is only one per photo):
POST: /projects/{project_id}/photos/{photo_id}/file
body: file to upload
response: -
And th...
How does Facebook Sharer select Images and other metadata when sharing my URL?
...re:
<meta property="og:image" content="http://ia.media-imdb.com/rock.jpg"/>
<meta property="og:image:secure_url" content="https://secure.example.com/ogp.jpg" />
and it should be present inside the <head></head> tag at the top of your page.
If these tags are not presen...
windows下捕获dump之Google breakpad_client的理解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...又没有深究它的需要，看breakpad里有pdb文件生成为纯文本格式后的样子，估计是为了统一各个平台吧。（又是一个《纯文本的威力》？）
windows 捕获 dump Google breakpad_client