从main调用组件的方法

import { ComponentName } from 'component-library';

const componentInstance = new ComponentName();

componentInstance.methodName();

import React from 'react';
import ReactDOM from 'react-dom';
import { ComponentName } from 'component-library';

// 创建组件实例
const componentInstance = new ComponentName();

// 调用组件方法
componentInstance.methodName();

// 渲染组件
ReactDOM.render(<ComponentName />, document.getElementById('root'));

import Vue from 'vue';
import ComponentName from 'component-library';

// 创建组件实例
const componentInstance = new Vue(ComponentName);

// 调用组件方法
componentInstance.methodName();

// 渲染组件
componentInstance.$mount('#app');