以上是目录结构，路由如下：

const router = require('koa-router')();
const views = require('koa-views');

router.use(views(__dirname + '/views'));
router.get('/', async (ctx, next) => {
    await ctx.render('index');
});

module.exports = router;

以上运行，会报如下错误：

于是我将关于路径那句改成

router.use(views(__dirname + '../views'));

报错信息变成

很无奈的，改成这样就能运行了：

router.use(views(__dirname + '/../views'));

现在是正常了，但这样显然是不合理的，请问应该怎么改呢？

顺手贴出index.js的代码：

const Koa = require('koa');
const router = require('./routes/routes');

const app = new Koa();

// log request URL:
app.use(async (ctx, next) => {
    console.log(`Process ${ctx.request.method} ${ctx.request.url}...`);
    await next();
});

// add router middleware:
app.use(router.routes());

app.listen(3000);
console.log('app started at port 3000...');

谢谢！