js创建命名空间

(function (){var a="";function _set(_value){a=_value;}function _get(){return a;}window['zhh']={};

//方法一：//window['zhh']['get']=_get;//window['zhh']['set']=_set;

//方法二：zhh.get=_get;zhh.set=_set;})();

//调用function alertValue(){alert(zhh.get());}