OPensea/dapp/nft數字藏品交易平臺系統開發詳情案例/原始碼部署/成熟技術

　　The evolution of new generation information technologies for data,such as blockchain,artificial intelligence,digital twins,human-computer interaction,and the Internet of Things,is not accidental,but rather a technological preparation for the evolution from Web2.0 to Web3.0.From a technical perspective,the metaverse is a trusted digital value interaction network based on the Web3.0 technology system and operating mechanism,and is a Web3.0 digital new ecosystem centered on blockchain.The universe is a new scene,new industry and new ecology supported by the Web3.0 technology system with the blockchain as the core,which will spawn a large number of innovative business models in the digital environment and form a new paradigm of digital space.

　　As a possible underlying technology of Web3.0,blockchain has built a new trust system in the digital economy era with the characteristics of decentralization,tamper resistance,and traceability.

　　From a technical perspective,blockchain enables every node of digital asset value flow to be transparent,traceable,and tamper proof,making all transactions in the Web 3.0 era more authentic and trustworthy

　　pragma solidity^0.5.0;

　　contract Counter{

　　uint public count=0;

　　event SelfEvent(address indexed sender,uint current);

　　constructor()public{

　　}

　　function inc(uint num)public returns(uint){

　　return count+=num;

　　}

　　function self()public{

　　emit SelfEvent(msg.sender,count);

　　}

　　}

　　{

　　"linkReferences":{},

　　"object":"608060405260...c63430005110032",

　　"opcodes":"PUSH1 0x80 PUSH1...1100 ORIGIN",

　　"sourceMap":"27:337:0...37;;;;;;"

　　}

　　//私鑰地址

　　const PRIVATE_KEY='0x20f9169d40801955faada641cdb029f8e42c581c0c991a62753c736a0a168e5e';

　　//合約地址

　　const CONTRACT='';

　　const{Conflux}=require('js-conflux-sdk');

　　async function main(){

　　const cfx=new Conflux({

　　url:'

　　defaultGasPrice:100,

　　defaultGas:1000000,

　　});

　　const account=cfx.Account(PRIVATE_KEY);//create account instance

　　console.log(account.address);

　　//create contract instance

　　const contract=cfx.Contract({

　　abi:require('./sol/RC20.abi.json'),

　　bytecode:require('./sol/RC20.code.json'),

　　});

　　const receipt=await contract.constructor()

　　.sendTransaction({from:account})

　　.confirmed();

　　console.log(receipt.contractCreated);

　　}

　　main().catch(e=>console.error(e));