微信小程序處理頁面緩存的方法：

根據當前時間作為判斷依據，緩存數據，代碼：

    Page({
      data: {
      },
      onLoad: function () {
        //this.getNowTime()
        if(wx.getStorageSync("loaction_time")==this.getNowTime()){
          //讀取緩存
           console.log("緩存地址");
            var datevalue=wx.getStorageSync("loaction");
            console.log(datevalue)
        }else{
          wx.removeStorageSync("loaction");
          //請求地址
          console.log("請求地址");
          var loactionname="bs";
          wx.setStorageSync("loaction",loactionname);
          wx.setStorageSync("loaction_time",this.getNowTime());
          var datevalue=wx.getStorageSync("loaction"); 
          console.log(datevalue)
        }
      },getNowTime: function() {
        var now = new Date();
        var year = now.getFullYear();
        var month = now.getMonth() + 1;
        var day = now.getDate();
        if(month < 10) {
          month = '0' + month;
        };
        if(day < 10) {
          day = '0' + day;
        };
        //  如果需要時分秒，就放開
        var h = now.getHours();
        var m = now.getMinutes();
        var s = now.getSeconds();
        //var formatDate = year + '-' + month + '-' + day + ' ' + h + ':' + m + ':' + s;
        var formatDate = year + '-' + month + '-' + day;
        //console.log('當前時間',formatDate)
        return formatDate;
      }
    })