vue3+element-plus表單提交（非getCurrentInstance）

自用留念，避免忘記

<template>
  <div class="login">
    <el-form :model="form" ref="formRef" :rules="rules">
      <el-form-item></el-form-item>
      <el-form-item>
        <el-avatar :icon="UserFilled"></el-avatar>
      </el-form-item>
      <el-form-item prop="name">
        <el-input v-model="form.name"></el-input>
      </el-form-item>
      <el-form-item prop="pwd">
        <el-input v-model="form.pwd"></el-input>
      </el-form-item>
      <el-form-item prop="captcha">
        <el-input v-model="form.captcha"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="onSubmit">登錄</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script lang="ts" setup>
import { defineComponent, ref } from "vue";
import { UserFilled } from "@element-plus/icons";
const form = ref({
  name: "",
  pwd: "",
  captcha: "",
});
const rules = {
  name: [{ required: true, message: "必填", trigger: "blur" }],
  pwd: [{ required: true, message: "必填", trigger: "blur" }],
  captcha: [{ required: true, message: "必填", trigger: "blur" }],
};

const formRef = ref();

const onSubmit = () => {
  if (!formRef.value) return
  formRef.value.validate((valid: any) => {
      console.log(valid);
    });
};
</script>


<style scoped>
</style>