react hooks 中的事件

html

import React,{ useState } from 'react'

const VrCornucopiaHome = () => {

    const bbbbb = () => {
        alert(1)
    }
    return (
      <button type="button" onClick={ () => bbbbb() }>知道了</button>
    )
    //写在return后无效
    const bbbbb = () => {
        alert(1)
    }
}    

export default VrCornucopiaHome