takeout-wechat/src/App.vue

<script>
export default {
  onLaunch(options) {
    // Do something initial when launch.
    console.log(
      "App onLaunch, env文件自定义的环境变量VUE_APP_TEST值:",
      process.env.VUE_APP_TEST
    );
  },
  onShow(options) {
    // Do something when show.
    console.log("App onShow");
  },
  onHide() {
    // Do something when hide.
    console.log("App onHide");
  },
  onError(msg) {
    console.log("App onError");
    console.log(msg);
  },
  globalData() {
    return {
      a: "I am global data"
    };
  }
};
</script>