localstorage累加存取数组

/*
 * 累加存值
 */			
var yongyaofanan = {
	getItem:function(){
		return JSON.parse(window.localStorage.getItem('yongyaofanan'))||{};//取值
	},
	setItem:function(item){
		window.localStorage.setItem('yongyaofanan',JSON.stringify(item));//存值
		ObjAll = item;
	},
	update:function(key,value){
		var item = this.getItem();
		item[key] = value;
		this.setItem(item);
	}
}

/*
* 存值
*/
yongyaofanan.update('numnit',items[0].text);

/*
* 累加存值
*/
var alls = [];
var jisons = JSON.parse(window.localStorage.getItem('yongyaofanan'));
if(jisons != null){
　　alls.push(jisons);
};

/*
* 取值
*/
var medications = JSON.parse(window.localStorage.getItem('alls'));