慕课网--nodejs_2

(4)http 模块

回调 将后续函数作为参数放在起始函数中作为参数。

function learn(something) { 
   console.log(something);}
function we(callback,something) {
    something += ' is cool';
    callback(something);}
we(learn,'node.js');
we(function (something) {
   console.log(something);},"jade");

同步／异步
I／O