数据缓存

存储：wx.setStorageSync()

Page({
  onLoad() {
    wx.setStorageSync("key1", "value1");
  },
});

读取：wx.getStorageSync()

Page({
  onLoad() {
    console.log(wx.getStorageSync("key1"));
  },
});

删除：wx.removeStorageSync()

Page({
  onLoad() {
    console.log(wx.removeStorageSync("key1"));
  },
});