9、全局使用工具类 getCurrentInstance

 

main.js

import api from "./utils/api.js"
import StringUtil from "./utils/StringUtil.js"

    app.config.globalProperties.api = api;
    app.config.globalProperties.StringUtil = StringUtil;

 

vue

import {getCurrentInstance } from 'vue';

const { proxy } = getCurrentInstance();

console.log(proxy.api);
console.log(proxy.StringUtil.isBlank('1'));