PtahDao普塔道智慧合約流動性質押挖礦分紅系統開發(方案及功能)丨原始碼部署

xiaofufu發表於2023-03-31

  Dapp:代表去中心化應用程式。它們是在去中心化網路或區塊鏈上執行後端程式碼(主要用Solidity編寫的智慧合約)的應用程式。可以使用React、Vue或Angular等前端框架構建Dapp。


  Web3.0是基於區塊鏈技術實現去中心化的新型網際網路,其支援新的商業和社交等模式。


  Web3.0由使用者和創作者主導的開放協作、隱私保護、共創共建共享的新型生態,推動發展去中心化數字經濟


  app定製開發還涉及到以太坊智慧合約測試、系統詳情唯:MrsFu123  以太坊智慧合約安全性測試、以太坊智慧合約部署測試等。這些技術可以幫助開發者快速測試和部署dapp,從而確保dapp的可靠性和安全性。


 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。



  //this low-level function should be called from a contract which performs important safety checks


  function burn(address to)external lock returns(uint amount0,uint amount1){


  (uint112 _reserve0,uint112 _reserve1,)=getReserves();//gas savings


  address _token0=token0;//gas savings


  address _token1=token1;//gas savings


  uint balance0=IERC20(_token0).balanceOf(address(this));


  uint balance1=IERC20(_token1).balanceOf(address(this));


  uint liquidity=balanceOf[address(this)];


  bool feeOn=_mintFee(_reserve0,_reserve1);


  uint _totalSupply=totalSupply;//gas savings,must be defined here since totalSupply can update in _mintFee


  amount0=liquidity.mul(balance0)/_totalSupply;//using balances ensures pro-rata distribution


  amount1=liquidity.mul(balance1)/_totalSupply;//using balances ensures pro-rata distribution


  require(amount0>0&&amount1>0,'UniswapV2:INSUFFICIENT_LIQUIDITY_BURNED');


  _burn(address(this),liquidity);


  _safeTransfer(_token0,to,amount0);


  _safeTransfer(_token1,to,amount1);


  balance0=IERC20(_token0).balanceOf(address(this));


  balance1=IERC20(_token1).balanceOf(address(this));


  _update(balance0,balance1,_reserve0,_reserve1);


  if(feeOn)kLast=uint(reserve0).mul(reserve1);//reserve0 and reserve1 are up-to-date


  emit Burn(msg.sender,amount0,amount1,to);


  }


  //this low-level function should be called from a contract which performs important safety checks


  function swap(uint amount0Out,uint amount1Out,address to,bytes calldata data)external lock{


  require(amount0Out>0||amount1Out>0,'UniswapV2:INSUFFICIENT_OUTPUT_AMOUNT');


  (uint112 _reserve0,uint112 _reserve1,)=getReserves();//gas savings


  require(amount0Out<_reserve0&&amount1Out<_reserve1,'UniswapV2:INSUFFICIENT_LIQUIDITY');


  uint balance0;


  uint balance1;


  {//scope for _token{0,1},avoids stack too deep errors


  address _token0=token0;


  address _token1=token1;


  require(to!=_token0&&to!=_token1,'UniswapV2:INVALID_TO');


  if(amount0Out>0)_safeTransfer(_token0,to,amount0Out);//optimistically transfer tokens


  if(amount1Out>0)_safeTransfer(_token1,to,amount1Out);//optimistically transfer tokens


  if(data.length>0)IUniswapV2Callee(to).uniswapV2Call(msg.sender,amount0Out,amount1Out,data);


  balance0=IERC20(_token0).balanceOf(address(this));


  balance1=IERC20(_token1).balanceOf(address(this));


  }


  uint amount0In=balance0>_reserve0-amount0Out?balance0-(_reserve0-amount0Out):0;


  uint amount1In=balance1>_reserve1-amount1Out?balance1-(_reserve1-amount1Out):0;


  require(amount0In>0||amount1In>0,'UniswapV2:INSUFFICIENT_INPUT_AMOUNT');


  {//scope for reserve{0,1}Adjusted,avoids stack too deep errors


  uint balance0Adjusted=balance0.mul(1000).sub(amount0In.mul(3));


  uint balance1Adjusted=balance1.mul(1000).sub(amount1In.mul(3));


  require(balance0Adjusted.mul(balance1Adjusted)>=uint(_reserve0).mul(_reserve1).mul(1000**2),'UniswapV2:K');


  }


  _update(balance0,balance1,_reserve0,_reserve1);


  emit Swap(msg.sender,amount0In,amount1In,amount0Out,amount1Out,to);


  }


  //force balances to match reserves


  function skim(address to)external lock{


  address _token0=token0;//gas savings


  address _token1=token1;//gas savings


  _safeTransfer(_token0,to,IERC20(_token0).balanceOf(address(this)).sub(reserve0));


  _safeTransfer(_token1,to,IERC20(_token1).balanceOf(address(this)).sub(reserve1));


  }


  //force reserves to match balances


  function sync()external lock{


  _update(IERC20(token0).balanceOf(address(this)),IERC20(token1).balanceOf(address(this)),reserve0,reserve1);


  }


  }


來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/69956839/viewspace-2943113/,如需轉載,請註明出處,否則將追究法律責任。

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