module.exports = {
  set: function(k, v, time) {
    var effTime = parseInt(Date.parse(new Date())) + 86400000 * time; //有效时期时间戳
    wx.setStorageSync(k, v ? v : effTime);
  }
};
//86400000 就是一天等于多少毫秒

  // 点击推送通知按钮设置7天有效时间缓存
   openNotice: function() {
     Storage.set('oldStorTime', '', 7); 
   }

//判断
Off:function(){
     var currentTime = Date.parse(new Date()); //当前时间戳
     if (currentTime < wx.getStorageSync('oldStorTime')) {
       //console.log("缓存时间有效")
     } else {
      //console.log("缓存时间已过期")
     }
}