秒合约系统开发（多语言）丨交易所秒合约系统开发（海外版）丨秒合约交易所开发源码搭建

Blockchain 2.0 has become a term for decentralized blockchain databases.Utilize blockchain data structures to validate and store data,and use distributed node consensus algorithms to generate and update data,利用密码学的方式保证数据传输和访问的安全、利用由自动化脚本代码组成的智能合约，编程和操作数据的全新的分布式基础架构与计算范式。就是一个又一个区块组成的链条，每一个区块中保存了一定的信息，它们按照各自产生的时间顺序连接成链条。　　import ethers fromethers;　　import express fromexpress;　　import chalk fromchalk;　　import dotenv fromdotenv;　　import inquirer frominquirer;　　const app=express();　　dotenv.config();　　const data={　　WBNB:process.env.WBNB_CONTRACT,//wbnb　　to_PURCHASE:process.env.TO_PURCHASE,//token that you will purchase=BUSD for test0xe9e7cea3dedca5984780bafc599bd69add087d56　　AMOUNT_OF_WBNB:process.env.AMOUNT_OF_WBNB,//how much you want to buy in WBNB　　factory:process.env.FACTORY,//PancakeSwap V2 factory　　router:process.env.ROUTER,//PancakeSwap V2 router　　recipient:process.env.YOUR_ADDRESS,//your wallet address,　　Slippage:process.env.SLIPPAGE,//in Percentage　　gasPrice:ethers.utils.parseUnits(${process.env.GWEI},gwei),//in gwei　　gasLimit:process.env.GAS_LIMIT,//at least 21000　　minBnb:process.env.MIN_LIQUIDITY_ADDED//min liquidity added　　}　　let initialLiquidityDetected=false;　　let jmlBnb=0;　　const 　const mnemonic=process.env.YOUR_MNEMONIC//your memonic;　　const tokenIn=data.WBNB;　　const tokenOut=data.to_PURCHASE;　　const provider=new ethers.providers.WebSocketProvider(wss);　　const wallet=new ethers.Wallet(mnemonic);　　const account=wallet.connect(provider);　　const factory=new ethers.Contract(　　data.factory,　　[　　event PairCreated(address indexed token0,address indexed token1,address pair,uint),　　function getPair(address tokenA,address tokenB)external view returns(address pair)　　],　　account　　);　　const router=new ethers.Contract(　　data.router,　　[