Question

10.1. 开发环境

		
npm init
npm install web3 --save
npm install solc
		
		

10.1.1. Ropsten 测试网

			
geth --testnet --syncmode light --cache 1024 --ipcpath /Users/neo/Library/Ethereum/geth.ipc
			
			

Ropsten 测试网上转账的例子

			
fs = require('fs');
var net = require('net');
var Web3 = require('web3');
var web3 = new Web3('/Users/neo/Library/Ethereum/geth.ipc', net);

console.log(web3.version)
const abi = fs.readFileSync('output/TokenERC20.abi', 'utf-8');

const contractAddress = "0x70682386d0dE84B1e549DC3c4305CCB2D261b2a8";
const coinbase = "0xB94054c174995AE2A9E7fcf6c7924635FBa8ECF7";
const toAddress = "0xf56b81a2bcb964D2806071e9Be4289A5559BB0fA";

balanceWei = web3.eth.getBalance(coinbase);
console.log(balanceWei);

const contract = new web3.eth.Contract(JSON.parse(abi), contractAddress, { from: coinbase , gas: 100000});

web3.eth.personal.unlockAccount(coinbase, "netkiller").then(function(result){
	console.log(result)
	contract.methods.balanceOf(coinbase).call().then(console.log).catch(console.error);
	contract.methods.balanceOf(toAddress).call().then(console.log).catch(console.error);
});


contract.methods.transfer(toAddress, 10000).send().then(function(receipt){

	console.log(receipt);

}).catch(console.error);

contract.methods.balanceOf(coinbase).call().then(console.log).catch(console.error);
contract.methods.balanceOf(toAddress).call().then(console.log).catch(console.error);