//定義包名
YAHOO.namespace("test");

//定義類
YAHOO.test.Person = function(name) {
this.name = name;
}
YAHOO.test.Person.prototype.setName = function(name){ this.name = name;}
YAHOO.test.Person.prototype.getName = function(){ return this.name;}


//創建一個對象
var p = new YAHOO.test.Person("jack");

console.log(p.getName());//jack
p.setName('tom');
console.log(p.getName());//tom

//測試instanceof及p.constructor是否正確指向了YAHOO.test.Person
console.log(p instanceof YAHOO.test.Person);
console.log(p.constructor == YAHOO.test.Person);