function fn1(fn,arg){
    fn(arg);
}

 name(n){
    console.log("i am "+n);
}

fn1(name,"cyy");

(n){
    console.log("i am "+n);
},"cyy2");

var http=require("http");

http.createServer((request,response){
    response.writeHead(200,{"Content-Type":"text/plain"});
    response.write("hello http~");
    response.end();
}).listen(8888);