const express = require('express'); const cors = require('cors'); const dotenv = require('dotenv'); dotenv.config(); const app = express(); const router = require('./app'); app.use(cors()); app.use(express.json()); // 路由前缀要和前端请求一致 app.use('/ms/back-new', router); const PORT = process.env.PORT || 3000; app.listen(PORT, () => { console.log(`Server running on port ${PORT}`); });