摘要：
function Phone(NUM,TITLE){ this.num = NUM;//实例变量，用"对象.属性"访问 this.title = TITLE; this.print = function (){ alert("num:"+this.num+"title:"+this.title); }}Phone.size = 111 ;//类变量，只能用"类名.属性"访问Phone.prototype.color = "red";//实例变量，用"对象.属性"访问var p 阅读全文
