嗷嗚~

<van-steps :active="stepActive"  finish-icon="passed" active-icon="success">
        <van-step>測試</van-steps>
</van-steps>
<slot></slot>

const props = defineProps({
    stepActive:{
        type:Number,//類型字符串
        default:0//如果沒有傳遞msg參數,默認值是這個
    }
})

<fitSteps  ref="ChildsDom">
     <div>插槽信息</div>
</fitSteps>
<van-button type="primary" @click="FatherClick">下一步</van-button>

const ChildsDom = ref(null);

const FatherClick = () => {
    
    ChildsDom.value.handelClick();
    // console.log("ChildsDom.value", ChildsDom.value)
}

const handelClick = () => {
    console.log('234');
}

defineExpose({ handelClick, });