element单独检验form表单中的一项

<el-form-item prop="limitDays" style="margin-left: 5px;"><el-input v-model="ruleForm.limitDays" placeholder="天数" style="width: 100px;" />
</el-form-item>
<el-form-item prop="limitCount"><el-input v-model="ruleForm.limitCount" placeholder="个数" style="width: 100px;" />
</el-form-item><el-button type="primary" link @click="clickBtn(ruleFormRef)">生成图文详情</el-button>

const clickBtn = async (formEl: FormInstance | undefined ) => {if (!formEl) returnawait formEl.validateField(['limitDays', 'limitCount'], (flag) => {if (flag) {console.log('验证')}})
}