nodejs开启服务器

require('http').createServer(function(input, echo) {
echo.writeHead(200, {
'Content-Type': 'text/plain'
});
var index=require('my/index.js');
echo.write( index.show());
echo.end();
}).listen(1337, "127.0.0.1");
console.log('<<Server running at http://127.0.0.1:1337/>>');

require目录为npm  node_modules所在目录