diff --git "a/Class 1/\346\242\205\345\255\220\351\205\222/erc20.js" "b/Class 1/\346\242\205\345\255\220\351\205\222/erc20.js" new file mode 100644 index 0000000..b38a43d --- /dev/null +++ "b/Class 1/\346\242\205\345\255\220\351\205\222/erc20.js" @@ -0,0 +1,327 @@ +module.exports = [ + { + constant: true, + inputs: [], + name: 'name', + outputs: [{ name: '', type: 'bytes32' }], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: false, + inputs: [], + name: 'stop', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [ + { name: 'guy', type: 'address' }, + { name: 'wad', type: 'uint256' } + ], + name: 'approve', + outputs: [{ name: '', type: 'bool' }], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [{ name: 'owner_', type: 'address' }], + name: 'setOwner', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: true, + inputs: [], + name: 'totalSupply', + outputs: [{ name: '', type: 'uint256' }], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: false, + inputs: [ + { name: 'src', type: 'address' }, + { name: 'dst', type: 'address' }, + { name: 'wad', type: 'uint256' } + ], + name: 'transferFrom', + outputs: [{ name: '', type: 'bool' }], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: true, + inputs: [], + name: 'decimals', + outputs: [{ name: '', type: 'uint256' }], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: false, + inputs: [ + { name: 'guy', type: 'address' }, + { name: 'wad', type: 'uint256' } + ], + name: 'mint', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [{ name: 'wad', type: 'uint256' }], + name: 'burn', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [{ name: 'name_', type: 'bytes32' }], + name: 'setName', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: true, + inputs: [{ name: 'src', type: 'address' }], + name: 'balanceOf', + outputs: [{ name: '', type: 'uint256' }], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: true, + inputs: [], + name: 'stopped', + outputs: [{ name: '', type: 'bool' }], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: false, + inputs: [{ name: 'authority_', type: 'address' }], + name: 'setAuthority', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: true, + inputs: [], + name: 'owner', + outputs: [{ name: '', type: 'address' }], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: true, + inputs: [], + name: 'symbol', + outputs: [ {"internalType": "string", + "name": "", + "type": "string"}], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: false, + inputs: [ + { name: 'guy', type: 'address' }, + { name: 'wad', type: 'uint256' } + ], + name: 'burn', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [{ name: 'wad', type: 'uint256' }], + name: 'mint', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [ + { name: 'dst', type: 'address' }, + { name: 'wad', type: 'uint256' } + ], + name: 'transfer', + outputs: [{ name: '', type: 'bool' }], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [ + { name: 'dst', type: 'address' }, + { name: 'wad', type: 'uint256' } + ], + name: 'push', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [ + { name: 'src', type: 'address' }, + { name: 'dst', type: 'address' }, + { name: 'wad', type: 'uint256' } + ], + name: 'move', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: false, + inputs: [], + name: 'start', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: true, + inputs: [], + name: 'authority', + outputs: [{ name: '', type: 'address' }], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: false, + inputs: [{ name: 'guy', type: 'address' }], + name: 'approve', + outputs: [{ name: '', type: 'bool' }], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + constant: true, + inputs: [ + { name: 'src', type: 'address' }, + { name: 'guy', type: 'address' } + ], + name: 'allowance', + outputs: [{ name: '', type: 'uint256' }], + payable: false, + stateMutability: 'view', + type: 'function' + }, + { + constant: false, + inputs: [ + { name: 'src', type: 'address' }, + { name: 'wad', type: 'uint256' } + ], + name: 'pull', + outputs: [], + payable: false, + stateMutability: 'nonpayable', + type: 'function' + }, + { + inputs: [{ name: 'symbol_', type: 'bytes32' }], + payable: false, + stateMutability: 'nonpayable', + type: 'constructor' + }, + { + anonymous: false, + inputs: [ + { indexed: true, name: 'guy', type: 'address' }, + { indexed: false, name: 'wad', type: 'uint256' } + ], + name: 'Mint', + type: 'event' + }, + { + anonymous: false, + inputs: [ + { indexed: true, name: 'guy', type: 'address' }, + { indexed: false, name: 'wad', type: 'uint256' } + ], + name: 'Burn', + type: 'event' + }, + { + anonymous: false, + inputs: [{ indexed: true, name: 'authority', type: 'address' }], + name: 'LogSetAuthority', + type: 'event' + }, + { + anonymous: false, + inputs: [{ indexed: true, name: 'owner', type: 'address' }], + name: 'LogSetOwner', + type: 'event' + }, + { + anonymous: true, + inputs: [ + { indexed: true, name: 'sig', type: 'bytes4' }, + { indexed: true, name: 'guy', type: 'address' }, + { indexed: true, name: 'foo', type: 'bytes32' }, + { indexed: true, name: 'bar', type: 'bytes32' }, + { indexed: false, name: 'wad', type: 'uint256' }, + { indexed: false, name: 'fax', type: 'bytes' } + ], + name: 'LogNote', + type: 'event' + }, + { + anonymous: false, + inputs: [ + { indexed: true, name: 'src', type: 'address' }, + { indexed: true, name: 'guy', type: 'address' }, + { indexed: false, name: 'wad', type: 'uint256' } + ], + name: 'Approval', + type: 'event' + }, + { + anonymous: false, + inputs: [ + { indexed: true, name: 'src', type: 'address' }, + { indexed: true, name: 'dst', type: 'address' }, + { indexed: false, name: 'wad', type: 'uint256' } + ], + name: 'Transfer', + type: 'event' + } +]; \ No newline at end of file diff --git "a/Class 1/\346\242\205\345\255\220\351\205\222/package.json" "b/Class 1/\346\242\205\345\255\220\351\205\222/package.json" new file mode 100644 index 0000000..f38e896 --- /dev/null +++ "b/Class 1/\346\242\205\345\255\220\351\205\222/package.json" @@ -0,0 +1,30 @@ +{ + "name": "watch", + "version": "1.0.0", + "description": "", + "main": "index.js", + "scripts": { + "test": "echo \"Error: no test specified\" && exit 1" + }, + "author": "", + "license": "ISC", + "dependencies": { + "chalk": "^4.1.2", + "ethereumjs-abi": "^0.6.8", + "ethereumjs-tx": "^1.3.7", + "ethjs-contract": "^0.2.3", + "ethjs-query": "^0.3.8", + "fs": "0.0.1-security", + "got": "^9.6.0", + "httpntlm": "^1.7.7", + "jsonobject": "^2.0.0", + "kafka-node": "^5.0.0", + "line-reader": "^0.4.0", + "moment": "^2.29.1", + "readline": "^1.3.0", + "silly-datetime": "^0.1.2", + "single-line-log": "^1.1.2", + "web3": "^1.3.4", + "web3-eth-abi": "^1.3.4" + } +} diff --git "a/Class 1/\346\242\205\345\255\220\351\205\222/pancake.js" "b/Class 1/\346\242\205\345\255\220\351\205\222/pancake.js" new file mode 100644 index 0000000..008aadc --- /dev/null +++ "b/Class 1/\346\242\205\345\255\220\351\205\222/pancake.js" @@ -0,0 +1,89 @@ +module.exports = [{ + "inputs": [{ + "internalType": "uint256", + "name": "amountOut", + "type": "uint256" + }, + { + "internalType": "address[]", + "name": "path", + "type": "address[]" + }, + { + "internalType": "address", + "name": "to", + "type": "address" + }, + { + "internalType": "uint256", + "name": "deadline", + "type": "uint256" + } + ], + "name": "swapETHForExactTokens", + "outputs": [{ + "internalType": "uint256[]", + "name": "amounts", + "type": "uint256[]" + }], + "stateMutability": "payable", + "type": "function" +}, { + type: 'function', + name: 'swapExactTokensForETH', + inputs: [{ + internalType: "uint256", + name: 'amountIn', + type: 'uint256', + }, + { + internalType: "uint256", + name: 'amountOutMin', + type: 'uint256', + }, + { + internalType: "address[]", + name: 'path', + type: 'address[]', + }, + { + internalType: "address", + name: 'to', + type: 'address', + }, + { + internalType: "uint256", + name: 'deadline', + type: 'uint256', + }, + ], +}, { + type: 'function', + name: 'swapExactTokensForTokens', + inputs: [{ + internalType: "uint256", + name: 'amountIn', + type: 'uint256', + }, + { + internalType: "uint256", + name: 'amountOutMin', + type: 'uint256', + }, + { + internalType: "address[]", + name: 'path', + type: 'address[]', + }, + { + internalType: "address", + name: 'to', + type: 'address', + }, + { + internalType: "uint256", + name: 'deadline', + type: 'uint256', + }, + ], +}] diff --git "a/Class 1/\346\242\205\345\255\220\351\205\222/test1.js" "b/Class 1/\346\242\205\345\255\220\351\205\222/test1.js" new file mode 100644 index 0000000..21e0a1a --- /dev/null +++ "b/Class 1/\346\242\205\345\255\220\351\205\222/test1.js" @@ -0,0 +1,437 @@ +var Web3 = require('web3'); + +//创建 rpc 连接字符串 +var rpcstring = 'https://bsc-dataseed1.binance.org/' +// bsc 测试网 +var ceshiRPC = 'https://data-seed-prebsc-2-s2.binance.org:8545'; +//创建ws连接字符串 +var wstring = 'wss://bsc-ws-node.nariox.org:443'; +// wbnb地址 +var wbnbaddress = "0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c" +//第三部分的收款地址 +var walletaddress = "" +require("dotenv").config(); +//第三，四部分要用到的私钥 +var prikeystring = process.env.ceshi_key; //这里填自己的私钥 + +//第四部分，要交换哪个代币的地址 +var tokenaddress = "0x55d398326f99059ff775485246999027b3197955";//自己设置要交换的tokenaddress +var BUSD = "0xe9e7cea3dedca5984780bafc599bd69add087d56"; + +var wscweb3 = new Web3(new Web3.providers.WebsocketProvider(wstring)); +var rpcweb3 = new Web3(new Web3.providers.HttpProvider(rpcstring)); + +//设置web3 使用rpcweb3模式 +web3 = rpcweb3; + +//通过小数点多少位，转换对应的数据 +function getweiname(tokendecimals = 18) { + weiname = 'ether'; + switch (tokendecimals) { + case 3: + weiname = "Kwei"; + break; + case 6: + weiname = 'mwei'; + break; + case 9: + weiname = 'gwei'; + break; + case 12: + weiname = 'microether '; + break; + case 15: + weiname = 'milliether'; + break; + case 18: + weiname = 'ether'; + break; + + } + return weiname; +} + +//因为是通过网络查询，所以要使用 async模式才能查询，不适用 async 不会使用阻塞模式 +const getBNBBalance = async (address) => { + let result = await web3.eth.getBalance(address) + //由于使用的是大数模式，小数点有18位，所以获得的balance 要除以10^18次方才是正确的数据 + //或者使用自带的转换工具 + let balance = web3.utils.fromWei(result.toString(10), getweiname()); + //打印结果 + console.log("地址:" + address + "有" + balance + "个BNB"); + return balance; +} + + +//使用该函数之前需要应用 erc20 的 abi接口 + +//将erc20 取出来 +const erc20 = require('./erc20.js') + +//获得代币数量 +const getTokenBalance = async (tokenaddress, address) => { + //创建代币的智能合约函数 + var tokenContract = new web3.eth.Contract(erc20, tokenaddress); + + //调用代币的智能合约获取余额功能 + let result = await tokenContract.methods.balanceOf(address).call(); + //获得代币有多少位小数 + let decimals = await tokenContract.methods.decimals().call(); + weiname = getweiname(decimals); + let tokenbalance = web3.utils.fromWei(result.toString(10), weiname); + + //获得代币的符号 + let symbol = await tokenContract.methods.symbol().call(); + + //打印结果 + console.log("地址:" + address + "有代币:" + symbol + "的数量是:" + tokenbalance); + return tokenbalance; +} + + + + + + + + + +//用私钥将交易内容签名 +var EthereumTx = require('ethereumjs-tx'); +const util = require('ethereumjs-util') +//这里是加载私钥的部分 + + +prikeystring = prikeystring.replace("0x", "") +function getPriKey(prikeystring) { + + const privKey = new Buffer.from(prikeystring, "hex"); + return privKey; +} + +//这里的privKey 是私钥 +var priKey = getPriKey(prikeystring); + +//这里是将交易用私钥签名部分 +function getEthRawTx(fromAddress, toAddress, input, nonceNum, privKey, gasPrice, nbnb, gaslimit) { + + var rawTransaction = { + "from": fromAddress, + "nonce": web3.utils.toHex(nonceNum), + "gasLimit": web3.utils.toHex(gaslimit), + "gasPrice": web3.utils.toHex(gasPrice), + "to": toAddress, + "value": web3.utils.toHex(nbnb), + "data": input, //设置num属性 + "chainId": 0x38 //4:Rinkeby, 3:Ropsten, 1:mainnet + }; + + var tx = new EthereumTx(rawTransaction); + tx.sign(privKey); + var serializedTx = tx.serialize(); + return serializedTx; +} + + +//这里是将签名的内容发送到区块链网络中的代码 +const signTransaction = async (fromAddress, toAddress, input, nonceNum, privKey, gasPrice, nbnb, gaslimit) => { + var serializedTx = getEthRawTx(fromAddress, toAddress, input, nonceNum, privKey, gasPrice, nbnb, gaslimit) + + // Comment out these three lines if you don't really want to send the TX right now + console.log(`Attempting to send signed tx: ${serializedTx.toString('hex')}`); + var receipt = await web3.eth.sendSignedTransaction('0x' + serializedTx.toString('hex')); + console.log(`Receipt info: ${JSON.stringify(receipt, null, '\t')}`); + if (receipt.status == true) { + return true; + } + return false; +} + + + +const send = async () => { + //获得自己的地址 + var fromAddress = "0x" + util.privateToAddress(priKey).toString('hex'); + + //发送给谁 + var toAddress = walletaddress + + var nsendBNB = 0.008 + //假设交易 0.008个bnb + var nbnb = web3.utils.toWei((nsendBNB).toString(10), 'ether'); + //设置gasprice 为 5G wei + var gasPrice = web3.utils.toWei((10).toString(10), 'Gwei'); + //设置 gaslimit 为 420000 + var gaslimit = 420000 + //没有调用智能合约，将input设置为空 + var input = "" + //获得下一次交易的数 + console.log("发送地址是：" + fromAddress) + var nonceCnt = await web3.eth.getTransactionCount(fromAddress); + let reslut = await signTransaction(fromAddress, toAddress, input, nonceCnt, priKey, gasPrice, nbnb, gaslimit) + if (reslut) { + console.log("交易成功") + } + else { + console.log("交易失败") + } + +} + + + +const pancake = require('./pancake.js') + +//获取input内容 +function swaptokeninput(wbnbadddress, toaddress, tokenamountIn, amountOut, tokenaddress, tokendecimals = 18,) { + + weiname = getweiname(tokendecimals); + + var path = [ wbnbadddress,tokenaddress]; + + var amountOutMin = web3.utils.toWei(amountOut.toString(10), weiname); + const now = moment().unix(); + const DEADLINE = now + 60 * 20; //往后延迟20分钟 + + var deadline = (DEADLINE).toString(10); + console.log("inputbefore"); + console.log(pancake[0]); + var input = web3.eth.abi.encodeFunctionCall(pancake[0], [ amountOutMin, path, toaddress, deadline]); + console.log(input) + return input; +} +var moment = require('moment'); +const swap = async () => { + + //获得自己的地址 + var fromAddress = "0x" + util.privateToAddress(priKey).toString('hex'); + //要交换的tokenadrress + + var tokenContract = new web3.eth.Contract(erc20, tokenaddress); + + //获得代币有多少位小数 + let decimals = await tokenContract.methods.decimals().call(); + + // 设置交易滑点,直接调用合约可以设置100的滑点，这里设置50的滑点 + var los = 1; + // 假设要购买5个BNB的tokenA + var nbnb = 0.002; + //假设bnb 和 token的兑换比例是 1:1000 + var rate = 500; + var ntoken = nbnb * (100 - los) / 100 * rate; + + var wbnbaddress = "0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c"; + var addresspancake = "0x10ed43c718714eb63d5aa57b78b54704e256024e"; + //获得input 内容 + + + //创建交易执行智能合约 + + + var toAddress = addresspancake + //获得下一次交易的数 + var nonceCnt = await web3.eth.getTransactionCount(fromAddress); + + //交易需要5个BNB + nbnb = web3.utils.toWei((nbnb).toString(10), 'ether'); + //设置gasprice 为 5G wei + var gasPrice = web3.utils.toWei((5).toString(10), 'Gwei'); + //设置 gaslimit 为 420000 + var gaslimit = 420000 + + var input = swaptokeninput(wbnbaddress, fromAddress, nbnb, ntoken, tokenaddress, decimals); + let reslut = await signTransaction(fromAddress, toAddress, input, nonceCnt, priKey, gasPrice, nbnb, gaslimit) + if (reslut) { + console.log("交易成功") + } + else { + console.log("交易失败") + } + +} + +/** + * 作业 + */ + var addressList = ["0x7ceb519718a80dd78a8545ad8e7f401de4f2faa7","0x843d4a358471547f51534e3e51fae91cb4dc3f28", + "0xe4fae3faa8300810c835970b9187c268f55d998f","0x0e09fabb73bd3ade0a17ecc321fd13a19e81ce82", + "0x8850d2c68c632e3b258e612abaa8fada7e6958e5","0xde3dbbe30cfa9f437b293294d1fd64b26045c71a", + "0x8e3bcc334657560253b83f08331d85267316e08a","0x8f0528ce5ef7b51152a59745befdd91d97091d2f", + "0x4be63a9b26EE89b9a3a13fd0aA1D0b2427C135f8","0xA58950F05FeA2277d2608748412bf9F802eA4901"]; + + //输入要查询的地址 作业1 + function getMoreTokenBalance(address){ + + addressList.forEach(element => { + getTokenBalance(element,address); + }); + + } + //作业2 +async function transfermethod(contractAddress,toaddr,num){ + + + //获得自己的地址 + var fromAddress = "0x" + util.privateToAddress(priKey).toString('hex'); + + //发送给谁 + var toAddress = toaddr; + //设置gasprice 为 5G wei + var gasPrice = web3.utils.toWei((10).toString(10), 'Gwei'); + //设置 gaslimit 为 420000 + var gaslimit = 420000 + + //获得下一次交易的数 + console.log("发送地址是：" + fromAddress) + var nonceCnt = await web3.eth.getTransactionCount(fromAddress); + +var tokenContract = new web3.eth.Contract(erc20, contractAddress); +var input = tokenContract.methods.transfer(toAddress, web3.utils.toWei((num).toString(10), 'ether')).encodeABI(); + + let reslut = await signTransaction(fromAddress, contractAddress, input, nonceCnt, priKey, gasPrice, 0, gaslimit) + if (reslut) { + console.log("交易成功") + } + else { + console.log("交易失败") + } +} + +//作业3 +const tokentoeth = async (tokenAddress) => { + //获得自己的地址 + var fromAddress = "0x" + util.privateToAddress(priKey).toString('hex'); + //要交换的tokenadrress + var tokenContract = new web3.eth.Contract(erc20, tokenaddress); + let decimals = await tokenContract.methods.decimals().call(); + //var ntoken = getTokenBalance(tokenAddress,fromAddress); + //设置0.1的usdt换BNB + var ntoken = 0.1; + // 设置交易滑点,直接调用合约可以设置100的滑点，这里设置50的滑点 + var los = 1; + //假设bnb 和 token的兑换比例是 1:1000 + //暂时写死比例 + var rate = 549; + //最小获得bnb 数量 + var nbnb = ntoken * (100 - los) / 100 / rate; + var token_addr = "0xba2ae424d960c26247dd6c32edc70b295c744c43"; + var wbnbaddress = "0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c"; + var addresspancake = "0x10ed43c718714eb63d5aa57b78b54704e256024e"; + //获得input 内容 + //创建交易执行智能合约 + var toAddress = addresspancake + //获得下一次交易的数 + var nonceCnt = await web3.eth.getTransactionCount(fromAddress); + //设置gasprice 为 5G wei + var gasPrice = web3.utils.toWei((5).toString(10), 'Gwei'); + //设置 gaslimit 为 420000 + var gaslimit = 420000 + weiname = getweiname(decimals); + var path = [tokenAddress,wbnbaddress]; + var amount = web3.utils.toWei(ntoken.toString(10), weiname); + nbnb = nbnb.toString(10); + if(nbnb.indexOf(".") > -1 ){ + nbnb = nbnb.substr(0,nbnb.indexOf(".") + 14); + } + console.log("nbnb数量："+nbnb); + var amountOutMin = web3.utils.toWei(nbnb, weiname); + const now = moment().unix(); + const DEADLINE = now + 60 * 20; //往后延迟20分钟 + var deadline = (DEADLINE).toString(10); + console.log("inputbefore"); + console.log(pancake[1]); + console.log("amount:"+amount + "amountOutMin:"+amountOutMin); + var parameters = [amount,amountOutMin, path, fromAddress, deadline]; + + console.log("参数"+parameters); + var input = web3.eth.abi.encodeFunctionCall(pancake[1],parameters); + console.log(input); + let reslut = await signTransaction(fromAddress, toAddress, input, nonceCnt, priKey, gasPrice, 0, gaslimit) + if (reslut) { + console.log("交易成功") + } + else { + console.log("交易失败") + } + +} + +const tokentotoken = async (tokenAddress) => { + //获得自己的地址 + var fromAddress = "0x" + util.privateToAddress(priKey).toString('hex'); + //要交换的tokenadrress + var tokenContract = new web3.eth.Contract(erc20, tokenaddress); + let decimals = await tokenContract.methods.decimals().call(); + //var ntoken = getTokenBalance(tokenAddress,fromAddress); + //设置0.1的usdt换BNB + var ntoken = 0.1; + // 设置交易滑点,直接调用合约可以设置100的滑点，这里设置50的滑点 + var los = 5; + //假设bnb 和 token的兑换比例是 1:1000 + var rate = 1; + //最小获得bnb 数量 + var nbnb = ntoken * (100 - los) / 100 / rate; + var token_addr = "0xba2ae424d960c26247dd6c32edc70b295c744c43"; + var wbnbaddress = "0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c"; + var addresspancake = "0x10ed43c718714eb63d5aa57b78b54704e256024e"; + //获得input 内容 + //创建交易执行智能合约 + var toAddress = addresspancake + //获得下一次交易的数 + var nonceCnt = await web3.eth.getTransactionCount(fromAddress); + //设置gasprice 为 5G wei + var gasPrice = web3.utils.toWei((5).toString(10), 'Gwei'); + //设置 gaslimit 为 420000 + var gaslimit = 420000 + weiname = getweiname(decimals); + var path = [tokenAddress,BUSD]; + var amount = web3.utils.toWei(ntoken.toString(10), weiname); + nbnb = nbnb.toString(10); + if(nbnb.indexOf(".") > -1 ){ + nbnb = nbnb.substr(0,nbnb.indexOf(".") + 14); + } + console.log("nbnb数量："+nbnb); + var amountOutMin = web3.utils.toWei(nbnb, weiname); + const now = moment().unix(); + const DEADLINE = now + 60 * 20; //往后延迟20分钟 + var deadline = (DEADLINE).toString(10); + console.log("inputbefore"); + console.log(pancake[1]); + console.log("amount:"+amount + "amountOutMin:"+amountOutMin); + var parameters = [amount,amountOutMin, path, fromAddress, deadline]; + + console.log("参数"+parameters); + var input = web3.eth.abi.encodeFunctionCall(pancake[2],parameters ); + console.log(input); + let reslut = await signTransaction(fromAddress, toAddress, input, nonceCnt, priKey, gasPrice, 0, gaslimit) + if (reslut) { + console.log("交易成功") + } + else { + console.log("交易失败") + } + +} + +const main = async () => { + //第一部分，获得bnb的的数量 + //getBNBBalance(walletaddress); + //第二部分，获得代币的数量 + // getTokenBalance(wbnbaddress, walletaddress); + //第三部分，发送bnb + // send(); + //第四部分，pancake bnb 交换某个代币 + //swap() + + //1.获取十个代币数量 + //getMoreTokenBalance("0xB3cfaa16368A907BF8f195E27edA60b0477a8a5c"); + //2.转移代币 + // const USDT= "0xcdadb1d9ae238db553ab88a7c5356f4b518c76cb"; + //transfermethod(USDT,"0x5634958D665CbC8e1244C8A30A0FeA62cf308607",2); + //3.薄饼交换功能 未写授权 usdt 换 bnb ， usdt 换 busd + // tokentoeth(tokenaddress); + // tokentotoken(tokenaddress); +} + +//启动程序 +main() \ No newline at end of file