genesis addon

= previousblock.index + 1; var nexttimestamp = new Date (). GetTime ()/1000; var Nexthash = Calculatehash (Nextindex, Previousblock.hash, Nexttimestamp, blockdata); Return to new block (Nextindex, Previousblock.hash, Nexttimestamp, Blockdata, Nexthash); The storage unit uses the blockchain storage array. The first block is always hard-coded "Genesis Block". var getgenesisblock = () => {return new blocks (0, "0", 1465154705, "My

transaction information that the block can contain, because we are the private chain, so fill the maximumNonce//A 64-bit random numberA hash generated by a part of the last block that is used to Mixhash//with nonce for mining.Hash value of Parenthash//previous blockAlloc//Preset accounts and the number of etheric coins in the account, private chain mining is easier to not configure Name the file Zero.json, which will be used later. Create a new folder under the ETH folder named Data0, which wi

are saved in the variable mapblockindex, if the load is successful, then Mapblockindex is not empty , Needs_init is false. legality detection Check if the Mapblockindex is loaded in the Genesis block if (!mapblockindex.empty () Mapblockindex.count (Chai Nparams. Getconsensus (). hashgenesisblock) = = 0) return Initerror (_ ("Incorrect or no Genesis block found.") Wrong

need to add the Genesis block (a block without a leading block). We also need to add a proof to our Origin block, which is the result of the mining (or work proof). We will discuss the ore digging in detail later. In addition to creating a Genesis block in a constructor, we also complement the full New_block (), New_transaction (), and hash () functions: blockchain.py Import hashlib Import JSON from time I

Koahub LoaderInstallation$ npm Install Koahub-loaderUse with KOA //1.model loader var model = Loader([ {root: './app/model', suffix: '. Model.js' },{root: './addon', suffix:" model.js , filter: [/\w*\/model\/] }]); //2.controller loader varapp=require ( " () ; varrouter=require ( " ) () var Controller = loader([ {root: './app/controller', suffix: '. Controller.js', prefix: '/', },{r

Koahub-loaderKoahub-loader is a koahub.js Koahub-loader controller based on the KOA Platform node. JS Development, model, help method automatically loadKoahub LoaderInstallation$ NPM Install Koahub-loaderUse with KOA1.model Loadervar model = Loader ([{Root: './app/model ',Suffix: '. Model.js '},{Root: './addon ',Suffix: '. Model.js ',Filter: [/\w*\/model\//]}]);2.controller Loadervar app = require (' KOA ') ();var router = require (' Koa-router ') ();

Input-group only for the input box, the input box group Input-group-addon the extra elements added before and after the input box input-group-btn the amount added The outer element is a button; -Divclass= "Container"> Divclass= "Row"> Divclass= "Input-group"> spanclass= "Input-group-addon">@span> inputtype= "text"class= "Form-control"/> Div> Div> the extra conten

require. resolve () method.The above code is put together. below is the pseudocode of the advanced algorithm of the require. resolve () method: [javascript] view plaincopyprint?1. If X is a core module,A. return the core moduleB. STOP2. If X begins with './' or '../'A. LOAD_AS_FILE (Y + X)B. LOAD_AS_DIRECTORY (Y + X)3. LOAD_NODE_MODULES (X, dirname (Y ))4. THROW "not found"LOAD_AS_FILE (X)1. If X is a file, load X as JavaScript text. STOP2. If X. js is a file, load X. js as JavaScript text. STO

:~ 0, 4%Set MONTH = % date :~ 5, 2%Set DAY = % date :~ 8, 2%: If the input time in dos does not return a 24-hour format (no filling is required), modify the value here.Set HOUR = % time :~ 0, 2%Set MINUTE = % time :~ 3,2%Set SECOND = % time :~ 6, 2%Set DIR = % BACKUP_PATH % YEAR % MONTH % DAY %Set ADDON = % YEAR % MONTH % DAY % HOUR % MINUTE % SECOND %: Create dirIf not exist % DIR % (Mkdir % DIR % 2> nul)If not exist % DIR % (Echo Backup path: % DIR

1. Firebug-Http://getfirebug.com/-view HTML/CSS and debug JavaScript 2. Web Developer Toolbar-Https://addons.mozilla.org/en-US/firefox/addon/60/-JavaScript and individually stylesheet can be easily disabled and HTML/CSS can also be verified 3. HttpFox-Https://addons.mozilla.org/en-US/firefox/addon/6647/-record and analyze HTTP Communication 4. YSlow-Https://addons.mozilla.org/en-US/firefox/

| | | | |-Nautilus| | | | |-nm-applets| | | | |-polkit-gnome-au| | | | |-python| | | | |-Restorecond| | | | '-{gnome-Session}| | | '-{gdm-session-wo}| | '-{gdm-simple-SLA}| '-{

installation package address In SDK Manager, open the View Log button in the lower-right corner (the button to the right of the red hand) to get the read XML file log. Carefully look at the log file, found that the law is as follows: First load an XML file, parse the XML file, and then from the XML file to obtain the corresponding classification of the file version information. Open these XML files one by one, the discovery is to describe the version information of each category file, at this

1. Download Thunderbird 17, unzip the configuration, or overwrite the original version directly:http://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/17.0.11esr/ 2. Download Exquilla(no license management, can be used indefinitely):https://addons.mozilla.org/en-us/thunderbird/addon/exquilla-exchange-web-services/versions/or http://download.csdn.net/download/rainysia/7901185.3. To integrate the calendar features of Exchange, download lightning1.9

] ~]# Pstree-aupinit,1├─acpid,3198├─atd,3544├─auditd,2467│├─audispd,2469││└─{audispd},2480│└─{auditd},2468├─automount,3296│├─{automount},3297│├─{automount},3298│├─{automount},3301│└─{automount},3304├─avahi-daemon,3575,avahi│└─avahi-daemon,3576├─gnome-terminal,1884│├─bash,1949│├─bash,2241││└─su,4076 FJC││└─bash,4077,fjc││└─vim,4097 1.php│├─bash,2295││└─pstree,4366-aup│├─bash,2494│├─gnome-pty-helpe,1914│└─{gnome-terminal},1916├─gnome-vfs-daemo,3980├─gpm,3465-m/dev/input/mice-t EXPS2├─hald,3217,hal

In the previous blog not to say impossible, nodejs in the sleep, I introduced to you the use of Nodejs addon. Today's theme is still addon, continue to tap C + + 's ability to make up for nodejs weaknesses. I have mentioned several times about the performance of Nodejs. In fact, in terms of language itself, Nodejs performance is still very high, although less than most static language, but the gap is not l

Database Config*/ The code is as follows Copy Code $db _host = ' localhost ';$db _user = ' root ';$db _pass = ';$db _database = '; $link = mysql_connect ($db _host, $db _user, $db _pass) or Die (' unable to establish a DB connection '); mysql_select_db ($db _database, $link);mysql_query ("Set names UTF8"); if (Empty ($_post[' comment ')) die ("0");If there isn ' t a comment text, exit $comment = mysql_real_escape_string (NL2BR (strip_tags ($_post[' comment ')));$user

=influxdb:http://monitoring-influxdb:8086 Note: modify ---source for your own master apiserver access address , Modify the image address (provided above) Heapster-service.yaml[[Email Protected]_master UI]#Cat Heapster-service.yamlapiVersion:v1kind:Servicemetadata:labels:task:monitoring#For use as a Cluster add-on (https://github.com/kubernetes/kubernetes/tree/master/cluster/addons) #If You is not using the this as a addon, you should comment out of

the memory body (instant system or a I/+ in the background of the process group;Priority of the process1. Duration of CPU processing2. Opportunities for CPU loading processingThe smaller the number, the higher the priority0-1390-99: The system is defined by default100-139: User can adjust theNice adjust nice offset, modify priority -20~+19Ordinary users can only add nice values, only nice values with positive integersAdministrator Root can use the nice value of negative numbersThe smaller the n

install successfully: sudo apt-get install software-properties-commonsudo add-apt-repository-y ppa:ethereum/ethereumsudo add-apt-repository-y ppa:ethereum/ethereum-devsudo apt-get updatesudo apt-get install ethereum PS: If you need to rely on other components during installation, install the other components first. Also, in the ubuntu16.04 version, the sudo apt-get install command can be streamlined to sudo apt install. Installation test After the installation is complete, enter it at the comma

In doing some testing, it may be necessary to build a private ethereum network to facilitate control and to get to the real test work faster.While the Ethereum nodes can link to each other need to meet 1) the same protocol version 2) the same networkid, so the most convenient way to build a private network is to use the--networkid option in the Geth command to set a different networkid from the main network ( The networkid of the main network is 1), which is also the official recommended method.