MSG乌托邦理想国NFT系统设计

MSG乌托邦理想国NFT系统有哪些特点

MSG乌托邦理想国NFT系统具有去中心化、可信性、高效性和易用性等特点。
function _swapSupportingFeeOnTransferTokens(address[]memory path,address _to)internal virtual{
  
  for(uint i;i,path[i+1]);
  
  (address token0,)=UniswapV2Library.sortTokens(input,output);
  
  IUniswapV2Pair pair=IUniswapV2Pair(UniswapV2Library.pairFor(factory,input,output));
  
  uint amountInput;
  
  uint amountOutput;
  
  {
  
  (uint reserve0,uint reserve1,)=pair.getReserves();
  
  (uint reserveInput,uint reserveOutput)=input==token0?(reserve0,reserve1):(reserve1,reserve0);
  
  amountInput=IERC20(input).balanceOf(address(pair)).sub(reserveInput);
  
  amountOutput=UniswapV2Library.getAmountOut(amountInput,reserveInput,reserveOutput);
  
  }
  
  (uint amount0Out,uint amount1Out)=input==token0?(uint(0),amountOutput):(amountOutput,uint(0));
  
  address to=i,path[i+1]);
  
  // 从 input 和 output 中算出谁是 token0
  
  (address token0,)=UniswapV2Library.sortTokens(input,output);
  
  // 获得 input,output 的流动池
  
  IUniswapV2Pair pair=IUniswapV2Pair(UniswapV2Library.pairFor(factory,input,output));
  
  uint amountInput;
  
  uint amountOutput;
  
  {
  
  // 获取流动池库存 reserve0,reserve1
  
  (uint reserve0,uint reserve1,)=pair.getReserves();
  
  // 如果 input==token0，那么 (reserveInput,reserveOutput) 就是 (reserve0,reserve1)；反之则相反
  
  (uint reserveInput,uint reserveOutput)=input==token0?(reserve0,reserve1):(reserve1,reserve0);
  
  //amountInput 等于流动池余额减去 reserveInput