(function (win,doc) {
    var local_storage = {
        //创建localstorage @param argument  json || string
        items: function (argument) {
            if (typeof argument == ‘object‘) { //创建
                for (var i in argument) {
                    win.localStorage.setItem(i, argument[i]);
                }
            } else if (typeof argument == ‘string‘) {  //获取
                return win.localStorage.getItem(argument);
            } else {
                return console.error(‘参数只能是json或者string‘);
            }
        },
        //删除localstorage  @param val  string || null
        rmitems: function (val) {
            if (val) {
                win.localStorage.removeItem(val);
            } else {
                var json = window.localStorage;
                for (var i in json) {
                    win.localStorage.removeItem(i);
                }
            }
        }
    }
    win.local_storage =local_storage ;

})(window,document);
用个js来装载，要用的时候直接调用还是很方便的，用json格式来装载，直接在另一个js里调用：如 local_storage .items({name:‘哈哈‘,age:12});就可以直接用把长的代码简单化

localstorage-前端存储