vue3.0之如何掛到vue原型，這種全局變量，方法，屬性

main.ts

import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
import ElementPlus from 'element-plus';
import 'element-plus/lib/theme-chalk/index.css';
const app = createApp(App);

//全局掛載方法和原型
const test = () => {
  console.log('ccccc');
  return '測試成功001';
};
app.config.globalProperties.$Test = test;
app.config.globalProperties.$Testwo = '我是測試';
app.use(ElementPlus).use(store).use(router).mount('#app')

login.vue

<template>
  <div class="warpper-login">
    <!-- 背景圖 -->
    <!-- 靜態版登錄背景 -->
    <div class="j-bc-loginBc"></div>
    <!-- 登錄框 -->
    <div class="login-panel">
      <div class="login-welcome">welcome</div>
      <div class="info">
        <div class="title-info">
          <label class="icon icon-title"></label>
          <span>{{ title }}</span>
        </div>
        <div class="text-user">
          <label class="icon icon-user"></label>
          <input type="text" v-model.trim="paramData.username" class="input" id="username" @keyup.enter="login" placeholder="請輸入帳號" />
        </div>
        <div class="text-pass">
          <label class="icon icon-pass"></label>
          <input type="password" v-model.trim="paramData.password" class="input password" @keyup.enter="login" placeholder="請輸入密碼" />
        </div>
        <div class="submit" @click="goto">
          <span>立&nbsp;即&nbsp;登&nbsp;錄</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script  lang="ts">
import SourceMirror from '@/components/resource/dutyMirror';
import Cookies from 'js-cookie';
import { useRouter } from 'vue-router';
import { defineComponent, ref, reactive, toRefs, getCurrentInstance } from 'vue';
export default defineComponent({
  setup(props, context) {
    const { proxy }: any = getCurrentInstance();

    const title = ref('綜合指揮系統');
    const router = useRouter();
    const paramData = reactive({
      username: '11',
      password: ''
    });
    function goto() {
      const param = {
        name: paramData.username,
        password: paramData.password
        //[e-mail]
      };
      SourceMirror.login(param).then(res => {
        if (res.data.code === 200) {
          let accessToken = res.data.data.accessToken;
          sessionStorage.setItem('accessToken', accessToken);
          sessionStorage.setItem('userName', res.data.data.user.userName);
          Cookies.set('accessToken', accessToken);
          // router.push('/home');
        } else {
          proxy.$message({
            message: '登錄失敗',
            type: 'warning'
          });
        }
        console.log(res);
        //  router.push('/home');
      });
    }
    return {
      goto,
      paramData,
      title
    };
  }
});
</script>
<style lang="less" scoped>
</style>

解析:

 const { proxy }: any = getCurrentInstance();