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What are “named tuples” in Python?
...le('Point', 'x y')
>>> pt1 = Point(1.0, 5.0)
>>> pt1.x = 2.0
AttributeError: can't set attribute
If you want to be able change the values, you need another type. There is a handy recipe for mutable recordtypes which allow you to set new values to attributes.
>>> from r...
为维护国家安全 中国限制出口无人机和高性能计算机 - 资讯 - 清泛网 - 专注...
...聚合数字计算机性能专门设计、单链路单向通信速率超过2.0GB/s的外部互连设备，都在限制范围内。
2011年10月27日，我国第一台完全采用国产CPU处理器的千万亿次超级计算机——神威蓝光，在国家超级计算济南中心投入使用。
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Allow User to input HTML in ASP.NET MVC - ValidateInput or AllowHtml
...e validation mode used. See MSDN:
<httpRuntime requestValidationMode="2.0" />
Edit Sept 2014: As per sprinter252 comments:
You should now use the [AllowHtml] attribute. See below from MSDN:
For ASP.NET MVC 3 applications, when you need to post HTML back to
your model, don’t use Va...
What’s the best way to reload / refresh an iframe?
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absolute it's work, but stuck with same domain origin policy ==a
– Bobby Stenly
Mar 19 '13 at 6:32
6
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Do Google refresh tokens expire?
...lace. As far as, I understand, the access token that is issued using oAuth 2.0, can then be used to request a refresh token. Why not just have a permanent access token, and cut out the extra call for the refresh token.
– Charles Robertson
Dec 15 '15 at 22:24
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Find() vs. Where().FirstOrDefault()
... predates the other methods. List<T> was added with generics in .NET 2.0, and Find was part of the API for that class. Where and FirstOrDefault were added as extension methods for IEnumerable<T> with Linq, which is a later .NET version. I cannot say with certainty that if Linq existed wi...
Camera 扩展：相机拍照和录像，程序控制拍照、自动拍照实现，而无需点击系...
... 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 搜索 ...
Displaying a message in iOS which has the same functionality as Toast in Android
...calling:
showToast(controller: self, message : "This is a test", seconds: 2.0)
Output:
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Matplotlib scatter plot with different text at each data point
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In version's earlier than matplotlib 2.0, ax.scatter is not necessary to plot text without markers. In version 2.0 you'll need ax.scatter to set the proper range and markers for text.
y = [2.56422, 3.77284, 3.52623, 3.51468, 3.02199]
z = [0.15, 0.3, 0.45, 0.6, ...
Remove trailing zeros
...string? You can use one of these:
string.Format("{0:G29}", decimal.Parse("2.0044"))
decimal.Parse("2.0044").ToString("G29")
2.0m.ToString("G29")
This should work for all input.
Update Check out the Standard Numeric Formats I've had to explicitly set the precision specifier to 29 as the docs cl...