html5 的localstorage

 /**
         * 向localStorage中设置数据
         * @param key   字符串
         * @param value 数组
         */
        function SetDataIntoLocalStorage(key, value) {
            localStorage.setItem(key, JSON.stringify(value));
        }
        /**
         * 从localStorage中获取数据
         * @param key   字符串
         */
        function GetDataFromLocalStorage(key) {
            return JSON.parse(localStorage.getItem(key));
        }
        /**
         * 从localStorage中移除数据
         * @param keysArr   数组
         */
        function RemoveDataFromLocalStorage(keysArr) {
            if (keysArr.length > 0) {
                for(var i = 0, len = keysArr.length; i < len; i++) {
                    localStorage.removeItem(keysArr[i]);
                }
            }
        }