const express = require('express') const router = require('./router.js') const config = require('./config.js') const app = express() // 导入并配置cors中间件, 解决跨域 const cors = require('cors') app.use(cors()) router.use(express.static('./public')) app.use(express.json()) app.use(router) app.listen(config.port,() =>{ console.log('程序正在',config.port,'端口上运行') })