luchenqun

import { readFile } from "fs/promises"
import { fromHex } from "@cosmjs/encoding"
import { DirectSecp256k1Wallet, DirectSecp256k1HdWallet, OfflineDirectSigner } from "@cosmjs/proto-signing"
import { SigningStargateClient, StargateClient } from "@cosmjs/stargate"
const tx_3 = require("cosmjs-types/cosmos/tx/v1beta1/tx");

const rpc = "ws://127.0.0.1:26657"

console.log(process.argv)
const getAliceSignerFromPriKey = async () => {

luchenqun

{
    "block_id":{
        "hash":"E2FB32B1030C83135E59BEDCEBAEA2A4F7940FF334442CB5637B66DCAC468C82",
        "parts":{
            "total":1,
            "hash":"8B55CC975325A501CB1A813C2D0F0D5FAE14C1C860679F4103269DCB23018577"
        }
    },
    "block":{
        "header":{

luchenqun

var RLP = require('rlp');
var EU = require('ethereumjs-util');
var BN = require('bn.js');
var Common = require('ethereumjs-common');
var EthereumTx = require('ethereumjs-tx');
var axios = require('axios');
var utils = require('web3-utils');
const paramsOrder = {
    '1000': ['typ', 'benefitAddress', 'nodeId', 'externalId', 'nodeName', 'website', 'details', 'amount', 'rewardPer', 'programVersion', 'programVersionSign', 'blsPubKey', 'blsProof'],
    '1001': ['benefitAddress', 'nodeId', 'rewardPer', 'externalId', 'nodeName', 'website', 'details'],

luchenqun

{
    "name": "Test Tokens List",
    "version": {
        "major": 1,
        "minor": 0,
        "patch": 0
    },
    "logoURI": "https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/ethereum/assets/0x7D1AfA7B718fb893dB30A3aBc0Cfc608AaCfeBB0/logo.png",
    "timestamp": "2021-07-25 00:00:00.000+00:00",
    "tokens": [

luchenqun

<template>
  <div id="app">
    <!-- element -->
    <div>
      <van-image :width="rWidth" :height="rHeight" :src="require('./assets/h.png')" />
      <van-image width="32" height="32" :src="require('./assets/flashlight.png')" v-bind:style="{ transform: 'rotate('+ rotate +'deg)', position: 'absolute',  left: left + 'px',  top: top + 'px' }" style="transform:rotate(300deg);position: absolute;  left: 100px;  top: 180px;" />
    </div>
    <van-divider :style="{ color: '#1989fa', borderColor: '#1989fa', padding: '0 10px' }" />
    <van-field v-model="vleft" type="digit" label="左位置" />
    <van-field v-model="vtop" type="digit" label="顶位置" />

luchenqun

// 参数设置，按照你的实际参数修改
const year = 30;                        // 贷款多少年年
const loan = 700000;                    // 总共借贷金额
const perMonthLoan = 3510;              // 每月还贷金额

const yearRate = 0.038;                 // 假设我存到银行年利率
const perMonthDeposit = 6;              // 每几(6)个月存一次

// 如果把贷款得钱存银行
let count = 12 * year / perMonthDeposit;        // 能存多少次

luchenqun

let sdk = require('./dist/index.js');
let { Percent, Token, Fetcher, TokenAmount, Pair, Trade, TradeType, Route } = sdk;
let providers = require('@ethersproject/providers');


(async () => {

  const provider = new providers.JsonRpcProvider("http://111.231.72.59:41230");

  const WETH = new Token(1337, '0x80ffbcf7f998208803db528b648def6281dc248f', 18, "WETH", "Wrapped Ether");

luchenqun

我是用版本为1.9.21-stable-0287d548的 geth 程序在我的Ubuntu机器上面使用命令 nohup geth --datadir /home/ubuntu/eth-data --networkid 88 --nodiscover --rpccorsdomain "*" --port 41229 --rpc --rpcaddr "0.0.0.0" --rpcport 41230 --rpcapi "db,eth,net,web3,personal,admin" --ws --wsaddr "0.0.0.0" --wsport 41231 --wsorigins "*" --wsapi "db,eth,net,web3,personal,admin" --debug --dev & 搭建了一条私链。以下交易均在上面搭建的私链上进行。

• 部署合约 WETH9，得到合约地址 0x848Be6C1C6Cd6fea30eE0c67818Ef7eaDec755ab。调用改合约的 deposit 函数，给部署者充值 1000000 的 WETH 代币。
• 部署合约 UniswapV2Factory。得到地址 0x1d1c0De0e3709C8fC15C76E87320b685E1Df9c1a
• 部署合约 UniswapV2Router02。得到地址 0x83f7cE12B4366F7E81632bA6D3EEd9d5F4Fc2198。
• 部署六种ERC20代币。然后调用合约 UniswapV2Factory 的函数 createPair。createPair第一个入参为 WETH9 代币地址，第二个入参为我部署的六种ERC20代币地址。得到的信息如下

| symbol | name |token 地址 | 调用createPair返回的配对地址| | ---- | ---- |---- |---- |---- | |CNY|人民币|0xA8d1A0Dd14cefdD1Dc62412A533e8f3612A85090 |0x629C20C409cadf2839c60A3e9337b0c634b54600 |

luchenqun

TOC

• Web3.providers.givenProvider
  • should be set if ethereumProvider is available
  • should be set if web3.currentProvider is available
• lib/solidity/coder
  • decodeParam
  • decodeParams
  • encodeParameter
  • encodeParameters
• async

luchenqun

import Web3 from 'web3';
import axios from 'axios';
import QRCode from 'qrcode';

import config from '@/config';
import api from '@/api';

const Tx = require('ethereumjs-tx');
const Util = require('ethereumjs-util');