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java中的缓存技术该如何实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...所有的OSCache特性。
永久缓存--缓存能随意的写入硬盘,因此允许昂贵的创建(expensive-to-create)数据来保持缓存,甚至能让应用重启。
支持集群--集群缓存数据能被单个的进行参数配置,不需要修改代码。
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Using .NET, how can you find the mime type of a file based on the file signature not the extension
...},
{"xhtml", "application/xhtml+xml"},
{"xls", "application/vnd.ms-excel"},
{"xml", "application/xml"},
{"xpm", "image/x-xpixmap"},
{"xsl", "application/xml"},
{"xlsx","application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
{"xltx","a...
How to show multiline text in a table cell
...rap our content works fine, but due to the use of this table (exporting to excel), large #s of columns and rows balloon the size of the exported file and cause excel to crash upon reading the file. (odd, I know). Has anyone else seen this or have an idea for a solution?
– JoeBr...
Ruby off the rails
... exist for this purpose.
I highly recommend Googling "ruby dsl" for some excellent reading, but I would like to leave you with one post in particular. Russ Olsen wrote a two part blog post on DSLs. I saw him give a presentation on DSLs and it was very good. I highly recommend reading these posts.
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Nginx缓存解决方案:SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...比较复杂的时候,比如说缓存键的动态计算等,就不得不写一点代码了,此时Lua模块是最佳选择。
闲言碎语不多讲,表一表Nginx配置文件长啥样:
lua_shared_dict phoenix_status 100m;
lua_package_path '/path/to/phoenix/include/?.lua;/path/to/phoen...
Standard deviation of a list
...of numpy.std is not correct. Given these values: 20,31,50,69,80 and put in Excel using STDEV.S(A1:A5) the result is 25,109 NOT 22,45.
– Jim Clermonts
Oct 1 '15 at 9:28
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Combine Date and Time columns using python pandas
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When I 'pd.read_excel' an Excel column that Excel identifies as "Time," pandas also reads it as "Time" automatically without any parsing argument required. Thanks for this solution. +1
– Saeed
Oct 14 '1...
What's so wrong about using GC.Collect()?
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So how about when you are using COM objects like MS Word or MS Excel from .NET? Without calling GC.Collect after releasing the COM objects we have found that the Word or Excel application instances still exist.
In fact the code we use is:
Utils.ReleaseCOMObject(objExcel)
' Call the...
技术人员如何创业《四》- 打造超强执行力团队 - 资讯 - 清泛网 - 专注C/C++...
...术型领导更加容易这样。与其去管理团队还不如多花时间写几个函数来的实际。授权就是教人做事的方法,充分信任他能做好,并且知道和鼓励他不要怕错。授权后并不是不管了,还需要去跟踪进度保证他们执行到位。
建立积...
C#操作XML小结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...23" value="321"/>
</aaa>
如果我要找到123然后取到321应该怎么写呢?
using System.XML;
XmlDataDocument xmlDoc = new System.Xml.XmlDataDocument();
xmlDoc.Load(@"c:/Config.xml");
XmlElement elem = xmlDoc.GetElementById("add");
string str = elem.Attributes["value"].Value
第三...