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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...叫Jacobson / Karels Algorithm（参看RFC6289）。这个算法引入了最新的RTT的采样和平滑过的SRTT的差距做因子来计算。 公式如下：（其中的DevRTT是Deviation RTT的意思）
SRTT = SRTT + α (RTT – SRTT) —— 计算平滑RTT
DevRTT = (1-β)*DevRTT ...
ASP.NET MVC A potentially dangerous Request.Form value was detected from the client when using a cus
...te" name="start-date" class="datepicker" type="text" placeholder="Ex: 1/1/2012"/>
</div>
<div>
<input id="end-date" name="end-date" class="datepicker" type="text" placeholder="Ex: 12/31/2012"/>
</div>
<div>
<input type="button" name="search" id="btnsearch" value...
In SQL Server, when should you use GO and when should you use semi-colon ;?
...
Update: in SQL Server 2012 NOT using semicolons is deprecated, meaning they will be required in next version. So it is a good practice to use semicolons, as it will require less work in case of migration (and because it is a standard). Source: tec...
AsyncProcedures异步过程扩展 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 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 ...
Why doesn't TFS get latest get the latest?
...hat TFVC (in "Server Workspace" mode, which was the mechanism prior to TFS 2012) does not examine the state of your local filesystem. TFVC Server Workspaces are a "checkout-edit-checkin" type of system where this is by-design, an intentional decision made to massively reduce the amount of file I/O ...
When do I need to use a semicolon vs a slash in Oracle SQL?
...statement:
SQL*Plus: Release 11.2.0.1.0 Production on Wed Apr 18 12:37:20 2012
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning and OLAP options
SQL> drop table foo;
Table droppe...
NSObject +load and +initialize - What do they do?
...] init];
}
return 0;
}
This program prints two lines of output:
2012-11-10 16:18:38.984 testApp[7498:c07] in Superclass initialize; self = Superclass
2012-11-10 16:18:38.987 testApp[7498:c07] in Superclass initialize; self = Subclass
Since the system sends the initialize method lazily, ...
ImageUtil 扩展：图像工具扩展，提供图像处理和变换功能 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 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 ...
File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希 ·...
...建 Apps 首页 教育 中文教育版 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 ...
Generate random numbers using C++11 random library
...numbers generated by rand.
(quote from Lippmans C++ primer fifth edition 2012)
I finally found a the best explaination out of 20 books in Bjarne Stroustrups newer ones - and he should know his stuff - in "A tour of C++ 2019", "Programming Principles and Practice Using C++ 2016" and "The C++ Pr...