问题描述
//I follow a koa tutorial and just copy and paste it,but it can not run,why ?and how to solve it?
var koa = require('koa');
var router = require('koa-router');
var app = new koa();
var _ = router(); //Instantiate the router
_.get('/hello',getMessage); // Define routes
function *getMessage() {
this.body = "Hello World!";
};
app.use(_.routes()); //Use the routes defined using the router
app.listen(3001);
解决方法
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