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App Inventor 2 TaifunImage 拓展，图像高级处理功能，剪裁，压缩，翻转等 ...
... offsetY = e.clientY - element.offsetTop; return false; // 防止文本选中 }; // 鼠标移动时拖动元素 document.onmousemove = function(e) { if (!isDragging) return; element.style.left = (e.clientX - offsetX) + 'px'; element.style.top = (e....
How to get POSTed JSON in Flask?
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First of all, the .json attribute is a property that delegates to the request.get_json() method, which documents why you see None here.
You need to set the request content type to application/json for the .json property and .get_jso...
How to get a cross-origin resource sharing (CORS) post request working
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I finally stumbled upon this link "A CORS POST request works from plain javascript, but why not with jQuery?" that notes that jQuery 1.5.1 adds the
Access-Control-Request-Headers: x-requested-with
header to all CORS requests....
C# 如何读取解析结构不完整的XML内容？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...XmlDocument的Load方法会发生异常）。
使用XmlTextReader类似读文本的形式可以解析XML片段，如下：
XmlTextReader tr = new XmlTextReader(@"<node>
<a>aa</a>
<b>bb</b>
</node>
<node>
<a>aaa</a>
<b>bbb</b>
...
C++ 打开文件，以清空覆盖的方式 - C/C++ - 清泛网 - 专注C/C++及内核技术
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ios::binary： 以二进制方式打开文件，缺省的方式是文本方式。两种方式的区别见前文
ios::in： 文件以输入方式打开（文件数据输入到内存）
ios::out： 文件以输出方式打开（内存数据输出到文件）
ios::...
The operation is in list? cannot accept the arguments: , [""...
...法调用它的任何方法，导致App崩溃。
多加一个判断（文本.是否为空），可以避免这类问题：
[/hide]
The arguments,[“xxx“], [false], [0]
Deciding between HttpClient and WebClient
Our web app is running in .Net Framework 4.0. The UI calls controller methods through ajax calls.
7 Answers
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Why are Python's 'private' methods not actually private?
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The name scrambling is used to ensure that subclasses don't accidentally override the private methods and attributes of their superclasses. It's not designed to prevent deliberate access from outside.
For example:
>>> class Foo(object):
... def __init__(self):
... self....
What is the difference between a web API and a web service?
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A web service typically offers a WSDL from which you can create client stubs automatically. Web Services are based on the SOAP protocol.
ASP.NET Web API is a newer Microsoft framework which helps you to build REST based interfaces. The response...
Byte order mark screws up file reading in Java
...va. Some of the files may have a byte order mark in the beginning, but not all. When present, the byte order gets read along with the rest of the first line, thus causing problems with string compares.
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