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安卓App可以实现从其他App的目录中拷贝文件吗？ - App应用开发 - 清泛IT社...
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3、如果其他应用通过 ContentProvider 或 FileProvider 显式共享文件，你的App可以通过 ContentResolver 访问这些文件。
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沙箱机制
每个app运行在自己的沙箱中，私有目录对其他app是完全隔离的，即使知道包名和路径...
Is there a way to use SVG as content in a pseudo element :before or :after
...lly to use this structure as one of the answers : url("data:image/svg+xml; utf8, <svg.. code here</svg>");
– Max
Jul 19 at 23:14
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How to percent-encode URL parameters in Python?
... Apparently it was fixed in python 3. You can workaround it by encoding as utf8 like this:
>>> query = urllib.quote(u"Müller".encode('utf8'))
>>> print urllib.unquote(query).decode('utf8')
Müller
By the way have a look at urlencode
Python 3
The same, except replace urllib.qu...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...mongoimport工具可供使用，不过它只接受json、csv等格式的源文件，不适合我的需求，所以我没用，而是用PHP写了一个脚本，平稳运行了一段时间后，我发现数据导入的速度下降了，同时PHP抛出异常：
cursor timed out (timeout: 30000, time l...
Parse large JSON file in Nodejs
...'myData.json',
stream = fs.createReadStream(jsonData, { encoding: 'utf8' }),
parser = JSONStream.parse('*');
return stream.pipe(parser);
}
getStream().pipe(MyTransformToDoWhateverProcessingAsNeeded).on('error', function (err) {
// handle any errors
});
To demonstrate with ...
20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...0 70628 0 0 115 4 89 79 1 6 90 3 0
3. lsof — 打开文件列表
lsof 命令对于很多 Linux/Unix 系统都可以使用，主要以列表的形式显示打开的文件和进程。
打开的文件主要包括磁盘文件、网络套接字、管道、设备和进程。使用...
Hash and salt passwords in C#
...xample in the question. You can convert text to byte arrays using Encoding.UTF8.GetBytes(string). If you must convert a hash to its string representation you can use Convert.ToBase64String and Convert.FromBase64String to convert it back.
You should note that you cannot use the equality operator on ...
Code for decoding/encoding a modified base64 URL
...atic string Base64ForUrlEncode(string str)
{
byte[] encbuff = Encoding.UTF8.GetBytes(str);
return HttpServerUtility.UrlTokenEncode(encbuff);
}
///<summary>
/// Decode Base64 encoded string with URL and Filename Safe Alphabet using UTF-8.
///</summary>
///<param name="str">B...
Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...s
new file: DbConnector
首先应当注意到新的 .gitmodules 文件。 该配置文件保存了项目 URL 与已经拉取的本地目录之间的映射：
[submodule "DbConnector"]
path = DbConnector
url = https://github.com/chaconinc/DbConnector
如果有多个子...
What is the best scripting language to embed in a C# desktop application? [closed]
... expose our object model to a scripting langauge. Time was when that meant VBA (which is still an option), but the managed code derivative VSTA (I think) seems to have withered on the vine.
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