你首先要安装ganache-cli globaly
npm install -g ganache-cli
然后你从命令行启动ganache-cli来启动testNet
ganache-cli
这将生成一个链接,你将在运行ganache-cli后看到它
Listening on 127.0.0.1:8545
现在你必须改变你的web3.js声明
const web3 = new Web3(ganache.provider()); // web3 is an instance which is connected to ganache local test network.
对此:
var web3 = new Web3("http://127.0.0.1:8545");