商城dapp开发，商城dapp系统开发技术方案及源码部署

1. The new retail of e-commerce refers to a new retail model in which individuals and enterprises rely on the Internet and use advanced technologies such as big data and artificial intelligence to upgrade the production, circulation and sales processes of goods, thus reshaping the business structure and ecosystem, and deeply integrating online services, offline experience and modern logistics. 2. In the future, e-commerce platforms will soon disappear, and the combination of online and offline and logistics will produce new retail. Online refers to the cloud platform, and offline refers to the sales of stores or manufacturers. The new logistics eliminates the inventory and reduces the quantity of goods stored. 　　内部函数（仅合约内部可以调用） 　　_mintFee 　　代码速览 　　function _mintFee(uint112 _reserve0,uint112 _reserve1)private returns(bool feeOn){ 　　address feeTo=IUniswapV2Factory(factory).feeTo(); 　　feeOn=feeTo!=address(0); 　　uint _kLast=kLast; 　　if(feeOn){ 　　if(_kLast!=0){开发案例：I35 software 7O98 development o7I8 　　uint rootK=Math.sqrt(uint(_reserve0).mul(_reserve1)); 　　uint rootKLast=Math.sqrt(_kLast); 　　if(rootK>rootKLast){ 　　uint numerator=totalSupply.mul(rootK.sub(rootKLast)); 　　uint denominator=rootK.mul(5).add(rootKLast); 　　uint liquidity=numerator/denominator; 　　if(liquidity>0)_mint(feeTo,liquidity); 　　} 　　} 　　}else if(_kLast!=0){系统源码：mrsfu123 　　kLast=0; 　　} 　　参数分析 　　函数_mintFee的入参有2个，出参有1个，对应的解释如下： 　　function _mintFee( 　　uint112 _reserve0,//token0的资金池库存数量 　　uint112 _reserve1//token1的资金池库存数量 　　)private returns( 　　bool feeOn//是否开启手续费 　　){ 　　... 　　}