Node.js——请求头

var http = require('http')
 
var server = http.createServer();
 
server.on('request', function (req, res) {
    res.setHeader('Content-Type', 'text/plain;charset=utf8');
    res.write('hello 世界');
    res.end();
})
 
server.listen(8080, function () {
    console.log('server is running...')
})