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C#对象序列化与反序列化 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术

...化不能序列化私有数据。 (2)几种序列化的区别 二进制格式和SOAP格式可序列化一个类型的所有可序列化字段,不管它是公共字段还是私有字段。XML格式仅能序列化公共字段或拥有公共属性的私有字段,未通过属性公开的私有字...
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Developing GUIs in Python: Tkinter vs PyQt [closed]

...eading (I used it and it works like a charm),... I even use it to generate PDF's (no other external libs needed). I would recommend Mark Summerfield's book though 'Rapid GUI Programming with Python and Qt' to get you on speed. Keep in mind that Qt comes with a GUI builder (Qt designer) which is the ...
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How do I use spaces in the Command Prompt?

... set "CMD=C:\Program Files (x86)\PDFtk\bin\pdftk" echo cmd /K ""%CMD%" %D% output trimmed.pdf" start cmd /K ""%CMD%" %D% output trimmed.pdf" this worked for me in a batch file shar...
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How to print third column to last column?

...ocker.dmg Feb 09:04 Grammarly.dmg Feb 09:20 Payslip 10459 %2828-02-2018%29.pdf It will print: 20180301_123131.jpg 20180301_124304.jpg 20180301_124358.jpg Cisco_WebEx_Add-On.dmg Docker.dmg Grammarly.dmg Payslip 10459 %2828-02-2018%29.pdf As we can see, the payslip even with space, shows in the c...
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Cluster analysis in R: determine the optimal number of clusters

...v18/i06/paper # http://www.stat.washington.edu/research/reports/2006/tr504.pdf # library(mclust) # Run the function to see how many clusters # it finds to be optimal, set it to search for # at least 1 model and up 20. d_clust <- Mclust(as.matrix(d), G=1:20) m.best <- dim(d_clust$z)[2] cat("mod...
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术

...亮度。 在后一种情形下,两个功能没有关联。线路传输格式里不需要特定的“类型”域,因为所有“调整大小”拓扑的请求都是要求调整图像大小的,而所有传递给“调整亮度”拓扑的请求都是要求调整图像亮度的。在这样的...
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How does this site infecting script work?

... script providing the content of the iframe is made so as not to start the pdf download everytime. There may be a 1 in 10 chance or something like that. It did not try to download the pdf everytime I refreshed the joomla page. Could be even 1 in 100... who knows? – Peter Perh...
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Get MIME type from filename extension

...n/octet-stream"}, {".pcz", "application/octet-stream"}, {".pdf", "application/pdf"}, {".pfb", "application/octet-stream"}, {".pfm", "application/octet-stream"}, {".pfx", "application/x-pkcs12"}, {".pgm", "image/x-portable-graymap"}, {".pic", "i...
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ArrayBuffer to base64 encoded string

... I am trying 50mb pdf file upload using angualrjs and webapi2. I am using above line code , after upload file, the page got crashed and hanged . Below line of code ,I was used but getting null value in webapi method. "var base64String = btoa(...
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新浪是如何分析处理32亿条实时日志的? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...用我浪较新较全的IP库生成能适配maxmind geoip2 api的二进制格式IP库(maxmindDB),再开发logstash-filter-geoip2来解析IP。实测不仅IP解析准确率与公司IP库相同了,解析速度也提高了。 2,然后我们与用户都发现日志接入流程复杂,沟...