e5 4620

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Block chain consensus algorithm: A practical Byzantine fault-tolerant mechanism pbft

See personal blog for details: http://brainware360.cn/%E5%8C%BA%E5%9D%97%E9%93%BE%E5%85%B1%E8%AF%86%E7%AE%97%E6%B3%95%EF%BC%9A%E5%AE%9E%E7%94 %a8%e6%8b%9c%e5%8d%a0%e5%ba%ad%e5%ae%b9%e9%

My decoration site is included in the Amazon catalog feeling

: http://www.dmoz.org/World/Chinese_Simplified/%e5%95%86%e4%b8%9a/%e6%88%bf% e5%9c%b0%e4%ba%a7/%e8%a3%85%e4%bf%ae%e5%ae%b6%e5%b1%85/ Second, do a good job of the site itself will be included Do a valuable site, do a good job, no matter Baidu, Google, Amazon, will be included in your, regardless of Alexa, PR, IP, PV,

Use OpenCV for image creation, saving, and replication _opencv

': # Load image, Force convert to gray pimg = cv. LoadImage ("lena.jpg") # creates the same sized figure of the small pImg2 = cv. CreateImage (CV. GetSize (pimg), pimg.depth, pimg.nchannels) # Copy the image cv. Copy (pimg, PImg2, None) # writes the image to the file cv. SaveImage ("Lena1.jpg", PImg2) # Create a window cv. Namedwindow ("Mywin") # Displays the image cv. ShowImage ("Mywin", pimg)

SQL Injection Tips

function, directly use this to do by byte blasting canCstFeel the horror of Master Shifu!Here I say one of the questions, there are two parameters, one is table, one is ID, and then there is a blind in the ID, but there is a WAF, but the error injection is quite easy.But the scary thing comes, and the WAF intercepts the string of column, which means we can't get the field name (Column_name,columns, etc.)After a while, I asked Master Shifu for a moment. Hint,table can be injected without any WAF

Thoroughly understand the Oracle Character Set

China 2 Juan Execute the query on session 2: Session_2> select * from test; ID VAR ------------------------------ 1 ??? 2 China The above example looks very strange. session1 and 2 can display their inserted strings normally, and neither can display the strings inserted by the other party. First, we need to know how the two strings are stored in the database. We can use the dump function to get the encoding of Characters in the database: Copy codeThe Code is as follows: SQL> select id and dump

[Oracle] thoroughly understand the Oracle Character Set

------------------------------1 ???2 ChinaThe above example looks very strange. session1 and 2 can display their inserted strings normally, and neither can display the strings inserted by the other party. First, we need to know how the two strings are stored in the database. We can use the dump function to get the encoding of Characters in the database:Copy codeThe Code is as follows:SQL> select id and dump (var, 1016) from test;Id dump (VAR, 1016)------------------------------------------------

Interview Questions of a Company

class objects. C. static member functions cannot be operated by private controllers. D. static member functions can be directly called by class names. answer: d 9. in the following operators,. * B.> = C.: D. Delete answer: 6 operators that cannot be overloaded in C and C ++ :::,.,.*,? : , Sizeof, typeid 10. the following description about polymorphism, the error is that the polymorphism of a C ++ language is divided into the polymorphism at compilation and the polymorphism at runtime B compilat

Integer operations in Java (including truncation and tail rounding and rounding)

. println ("rounded to integer: (-2) =" + new bigdecimal ("-2 ″). setscale (0, bigdecimal. round_half_up); system. out. println ("rounded to an integer: (-2.1) =" + new bigdecimal ("-2.1 ″). setscale (0, bigdecimal. round_half_up); system. out. println ("rounded to an integer: (-2.5) =" + new bigdecimal ("-2.5 ″). setscale (0, bigdecimal. round_half_up); system. out. println ("rounded to an integer: (-2.9) =" + new bigdecimal ("-2.9 ″). setscale (0, bigdecimal. round_half_up); system. out. print

IPhone Enterprise Application Example 3: Program Framework Analysis

displays the data returned by the server, that is, the list of documents currently processed by the selected department is displayed.When you select the "Statistical Chart" main menu, the program lists the existing statistical charts of the system, as shown in 5-10.When you click the statistical chart details icon, the program queries the server background database through the Web service, and displays the Statistical Chart on the mobile phone based on the returned data, as shown in Figure 5-11

Preliminaries 2018 (3)

following networks belong to the LAN ().A, Internet B, CERNET C, Novell D, EthernetAnswer: CDIP Address Category: https://www.cnblogs.com/qiaoconglovelife/p/5349486.htmlLAN refers to a local area network .StructureFour-generation computer: Electronic tube computer, transistor computer, small, medium scale integrated circuit computer, large scale and VLSI computerThe basic unit for measuring the size of the storage space in a computer is byte bytes Note: This kind of computer compositio

Some useful web pages

://blog.csdn.net/lyoyou/archive/2009/08/14/4440778.aspx cross-compiling gstreamer-0.10.24 Http://blankboy.72pines.com/2011/03/27/%E4%BA%A4%E5%8F%89%E7%BC%96%E8%AF%91%E7%8E%AF%E5%A2%83%E4%BB%A5%E5%8F%8A%E5%BC%80%E5%8F%91%E6%9D%BF%E4%B8%8A-binsh-hello-not-found/Cross-compilati

[OCM] exam souvenir 20140707

[Photo taken at OCM test room] After two days of hard work, another top player of the Bonne moocm team completed the painting perfectly with a hundred percent of perfection. Passed on the domineering gesture! Well done! 650) This. length = 650; "src =" http://www.dbstyle.net/wordpress/wp-content/uploads/2014/07/140707-OCM%E8%80%83%E5%9C%BA%E5%90%88%E5%BD%B1%E7%

"Go" Day No. 02: Three sets of Git tools required on Windows platform

Original URL: https://github.com/doggy8088/Learn-Git-in-30-days/blob/master/docs/02%20%E5%9C%A8%20Windows%20%E5%B9%B3% E5%8f%b0%e5%bf%85%e8%a3%9d%e7%9a%84%e4%b8%89%e5%a5%97%20git%20%e5%b7%a5%e

PYQT Development Tutorials-building environments and development examples

FromDistutils.coreImportSetupImportPy2exeImportSys#this allows to run it has a simple double click.Sys.argv.append (' Py2exe ')Py2exe_options= { "Includes": ["Sip"], "Dll_excludes": ["MSVCP90.dll",], "Compressed": 1, "Optimize": 2, "ASCII": 0, "Bundle_files": 1, } Setup ( name = ' PyQt Demo ' , version = Span class= "string" > ' 1.0 ' , windows = [ ' pyqtdemo.py ' ,], ZipFile = none, Options = { ' Py2exe ' : Py2exe_options} ) * FAQRun-time fails after packagingAfter the package is

03--Master plan for vsphere deployment systems

and 2U of the PowerEdge R730, these two are two-way server, you can connect two CPUs. In this case, the 12th generation of the PowerEdge R420 and the PowerEdge R720 (the 13th generation of the PowerEdge is difficult to misappropriate for long).650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M01/82/3B/wKioL1dOy2WC_uwSAAPd8mJMY7Y547.png-wh_500x0-wm_3 -wmp_4-s_2640392104.png "title=" Intel Xeon E Series CPU naming conventions. png "alt=" wkiol1doy2wc_uwsaapd8mjmy7y547.png-wh_50 "/>▲intel Xe

Why do pthread_cond_wait always carry a mutex?

Fromhttps://www.zhihu.com/question/24116967?q=linux%20%E5%A4%9A%E7%BA%BF%E7%A8%8B%20%E8%99%9A%E5%81%87%E5%94% A4%e9%86%92%20%e9%97%ae%e9%a2%98%3f%e6%88%91%e6%80%8e%e4%b9%88%e8%a7%a3%e9%87%8a%e4%b8%8d%e5%90%8c%e8%82%af%e5 %ae%9a%e5

The entire process of downloading from NDK to JNI calls

directly to a. c file, which is not a problem. (If you want to know the contents of the code inside these two files, please download the document: Http://pan.baidu.com/s/1pJn3Eun, Password: GBKR. Open the downloaded Word document, command+f and then enter the keyword NDK to retrieve the relevant content for understanding. )3. After writing the. C or. cpp file, the running project will be compiled automatically, and the compilation will generate a. So file in the libs/armeabi/directory. The name

Methods for removing gaps between inline-block elements

For inline-block elements, such as several span elements set to Display:inline-block, no gaps are shown in IE6, 7, and gaps appear in other IE versions and advanced browsers. Div > span > span > span > span > Div > span{ width:50px; height:50px; border:1px solid red; Display:inline-block;Vertical-align:top (prevent the two spans from being too many fonts in span)}: Display in advanced browsers except IE6, 7Method One:There is a gap between the elements because there are spa

The full process of customizing the menu for PHP micro-credit development

= Curl_init (); curl_setopt ($ch, Curlopt_url, $url); curl_setopt ($ch, Curlopt_ssl_verifypeer, FALSE); curl_setopt ($ch, Curlopt_ssl_verifyhost, FALSE); curl_setopt ($ch, Curlopt_returntransfer, 1); $output = curl_exec ($ch); Curl_close ($ch); $jsoninfo = Json_decode ($output, true); $access _token = $jsoninfo ["Access_token"]; You can also directly in the browser address bar, stitching out the address, after execution, to obtain the following data Copy the Code code as follows: {"Access_token

Indefinite parameter usage of functions in go

This is a creation in Article, where the information may have evolved or changed. For detailed usage, please refer to "Go Language Programming" (Xu Xiwei, Beijing: People's post and Telecommunications Press, 2012.08) Section 2.5.3 "Indeterminate parameters". Here are some of the experiences that I use: You can interpret an indeterminate parameter as an array, you can organize an array or slice yourself, and then pass it as an indeterminate parameter to a function that accepts indeterminate argum

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