微信小程序缓存过期时间

 /*   *创建缓存   * @param e 缓存名称   * @param t 缓存值   * @param i 缓存时间   */  setCache: function(e, t, i) {    var n = +new Date / 1000,      a = true,      o = {        expire: i ? n + parseInt(i) : 0,        value: t      };    try {      wx.setStorageSync(e, o)    } catch (e) {      a = false    }    return a  },  /*   *获取缓存   * @param e 缓存名称   * @param t 缓存值   */  getCache: function(e, t) {    var i = +new Date / 1000,      n = "";    i = parseInt(i);    try {      n = wx.getStorageSync(e), n.expire > i || 0 == n.expire ? n = n.value : (n = "", this.removeCache(e))    } catch (e) {      n = void 0 === t ? "" : t    }    return n = n || ""  },  /*   *清除缓存   * @param e 缓存名称   */  removeCache: function(e) {    var t = true;    try {      wx.removeStorageSync(e)    } catch (e) {      t = false    }    return t  },