雜湊遊戲競猜系統開發原始碼(DEMO)hash遊戲競猜系統開發瞭解方案

　　真正實現以大資料、雲端計算、人工智慧、沉浸現實等諸多新技術實現聯通，並且真正構建起一個完整的全新世界的，正是區塊鏈技術。這便是區塊鏈的功能。透過元宇宙，我們真正看到了區塊鏈技術的這樣一種聯通、融合的角色與作用；透過元宇宙，我們看到了區塊鏈技術的這樣一種建構於生態之上的強大的能力。

　　//performs chained getAmountOut calculations on any number of pairs

　　//根據path,計算出每個交易對的輸入/輸出量(如果path>2,前一個交易對的輸出量，就是下一個交易對交易的輸入量)

　　//內部實際還是呼叫的上面getAmountOut方法，返回值amounts長度和path的長度一致，

　　function getAmountsOut(address factory,uint amountIn,address[]memory path)internal view returns(uint[]memory amounts){

　　require(path.length>=2,'UniswapV2Library:INVALID_PATH');

　　amounts=new uint[](path.length);//建立陣列

　　amounts[0]=amountIn;//0位置是輸入量

　　for(uint i;i<path.length-1;i++){//每兩個token組成一個交易對，計算out

　　(uint reserveIn,uint reserveOut)=getReserves(factory,path<i>,path[i+1]);

　　amounts[i+1]=getAmountOut(amounts<i>,reserveIn,reserveOut);

　　}

　　}Blockchain technology can thus empower enterprises in many ways:providing reliable shared data and building trust between all parties;Eliminate data islands,that is,

　　integrate data into a system through centralized ledgers that are shared in a network and support the access of licensees;Give high security to data;

　　interface IWETH{

　　function deposit()external payable;

　　function transfer(address to,uint value)external returns(bool);

　　function withdraw(uint)external;

　　}

　　contract UniswapV2Router02 is IUniswapV2Router02{

　　using SafeMath for uint;