npm i -S vue3-captcha

<script setup lang="ts">
import {ref} from "vue"
import Captcha,{CaptchaInstance}  from 'vue3-captcha';
let value=ref('')
let refCode=ref<CaptchaInstance>(null)
const handleCheck=()=>{
  if(refCode.value?.check(value.value)){
    console.log("check success")
  }
}

</script>

<template>
 <Captcha ref="refCode" />
 <input v-model="value">
 <button @click="handleCheck">校验</button>
</template>