佛薩奇2.0開發參考版丨佛薩奇2.0系統開發(成熟及專案)丨佛薩奇2.0系統原始碼部署

xiaofufu發表於2023-04-03

  區塊鏈等技術的參與。區塊鏈是Web3.0最突出的關鍵技術,助力安全、透明和防篡改的交易。Web3.0同時也包含其他機制促進和推動去中心化,如雲端計算、AR Cloud和其他網路空間關鍵技術等;


  什麼是原力元宇宙MetaForce?


  原力元宇宙MetaForce是在Polygon馬蹄鏈上部署的一個智慧合約,開發威:MrsFu123,Polygon馬蹄鏈,是基於ETH開發的一個獨立公鏈,用於構建和連線與以太坊相容的區塊鏈網路,智慧合約可以直接在馬蹄鏈上部署,百分百開源,百分百去中心化,一旦執行,不可篡改。


  關於區塊鏈專案技術開發唯:MrsFu123,代幣發行、dapp智慧合約開發、鏈遊開發、單雙幣質押、多鏈錢包開發、NFT盲盒遊戲、公鏈、鏈上游戲開發


  Uniswap博餅、交易所開發、量化合約開發、合約對沖、互助遊戲開發、Nft數字藏品開發、眾籌互助開發、元宇宙開發、swap開發、DAO智慧合約、


  夾子合約、鏈上合約開發、ido開發、商城開發等,開發過各種各樣的系統模式,更有多種模式、制度、案例、後臺等,成熟技術團隊,歡迎實體參考。


  pragma solidity^0.4.0;


  contract SoapBox{


  //Our'dict'of addresses that are approved to share opinions


  //我們批准分享意見的地址的“字典”


  mapping(address=>bool)approvedSoapboxer;


  string opinion;


  //Our event to announce an opinion on the blockchain


  //我們的事件釋出對區塊鏈的意見


  event OpinionBroadcast(address _soapboxer,string _opinion);


  //This is a constructor function,so its name has to match the contract


  //這是一個建構函式,所以它的名字必須與合約相匹配


  function SoapBox()public{


  }


  //Because this function is'payable'it will be called when ether is sent to the contract address.


  //因為這個函式是“支付”,所以當乙太網被髮送到合約地址時將被呼叫。


  function()public payable{


  //msg is a special variable that contains information about the transaction


  //msg是一個特殊變數,包含有關交易的資訊


  if(msg.value>20000000000000000){


  //if the value sent greater than 0.02 ether(in Wei)


  //如果傳送的值大於0.02 ether(在Wei中)


  //then add the sender's address to approvedSoapboxer


  //然後將發件人的地址新增到approvedSoapboxer


  approvedSoapboxer[msg.sender]=true;


  }


  }


  //Our read-only function that checks whether the specified address is approved to post opinions.


  //我們的只讀函式,用於檢查指定地址是否被批准釋出意見。


  function isApproved(address _soapboxer)public view returns(bool approved){


  return approvedSoapboxer[_soapboxer];


  }


  //Read-only function that returns the current opinion


  //返回當前意見的只讀函式


  function getCurrentOpinion()public view returns(string){


  return opinion;


  }


  //Our function that modifies the state on the blockchain


  //我們的函式修改了區塊鏈上的狀態


  function broadcastOpinion(string _opinion)public returns(bool success){


  //Looking up the address of the sender will return false if the sender isn't approved


  //如果發件人未獲批准,查詢發件人的地址將返回false


  if(approvedSoapboxer[msg.sender]){


  opinion=_opinion;


  emit OpinionBroadcast(msg.sender,opinion);


  return true;


  }else{


  return false;


  }


  }


  }


  複製程式碼


來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/69956839/viewspace-2943404/,如需轉載,請註明出處,否則將追究法律責任。

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