GeneB-miniprogram/src/pages/3/index.ts

const _app = getApp<IAppOption>();

Page({
  data: {},
  onLoad() {},
  handleTap1() {
    wx.navigateBack();
  },
  handleTap2() {
    wx.navigateTo({
      url: "/pages/1/index",
    });
  },
});

export {};