The metauniverse is an immersive digital world created by the combination of virtual reality,augmented reality and the Internet.The connotation and key technologies of the metauniverse require further breaking the space-time limit(5G and the Internet of Things),real immersion(VR),and value transmission(Web 3.0,blockchain). 從技術(shù)上來看，元宇宙是基于Web3.0技術(shù)體系和運(yùn)作機(jī)制支撐下的可信數(shù)字化價(jià)值交互網(wǎng)絡(luò)，是以區(qū)塊鏈為核心的Web3.0數(shù)字新生態(tài)。他總結(jié)道，元宇宙是以區(qū)塊鏈為核心的Web3.0技術(shù)體系支撐下的新場景、新產(chǎn)業(yè)和新生態(tài)，將會(huì)在數(shù)字環(huán)境下催生大量創(chuàng)新商業(yè)模式，形成數(shù)字空間新范式。 //****LIBRARY FUNCTIONS**** //以下方法，都是library里面的方法，代調(diào)用UniswapV2Library function quote(uint amountA,uint reserveA,uint reserveB)public pure virtual override returns(uint amountB){ return UniswapV2Library.quote(amountA,reserveA,reserveB); } function getAmountOut(uint amountIn,uint reserveIn,uint reserveOut) public pure virtual override returns(uint amountOut) {需求及邏輯I35詳細(xì)7O98模式O7I8 return UniswapV2Library.getAmountOut(amountIn,reserveIn,reserveOut); } function getAmountIn(uint amountOut,uint reserveIn,uint reserveOut) public pure virtual override returns(uint amountIn) { return UniswapV2Library.getAmountIn(amountOut,reserveIn,reserveOut); } function getAmountsOut(uint amountIn,address[]memory path) public view virtual override returns(uint[]memory amounts) {案例及設(shè)計(jì)：MrsFu123 return UniswapV2Library.getAmountsOut(factory,amountIn,path); } function getAmountsIn(uint amountOut,address[]memory path) public view virtual override returns(uint[]memory amounts) { return UniswapV2Library.getAmountsIn(factory,amountOut,path); } } //a library for performing overflow-safe math,courtesy of DappHub(https://github.com/dapphub/ds-math) library SafeMath{ function add(uint x,uint y)internal pure returns(uint z){ require((z=x+y)>=x,'ds-math-add-overflow'); } function sub(uint x,uint y)internal pure returns(uint z){ require((z=x-y)<=x