uni-app 通过vue-cli创建的vue3.0项目不支持的一些功能总结

通过defineComponents定义的组件导出的时候会提示"export 'defineComponent' was not found in 'vue'
小程序开发工具会报错 TypeError: Object(...) is not a function

<script>  
import { defineComponent, toRefs } from 'vue'  
export default defineComponent({  
name: 'xxx',  
props: {  
    tips: {  
        type: Array,  
        default: () => {  
            return []  
        }  
    }  
},  
setup(props, context) {  
    return {  
        ...toRefs(props)  
    }  
}  
})  
</script>

import { getCurrentInstance } from vue，uni-app框架下在vue中暂时拿不到getCurrentInstance这个函数，无法访问到getCurrentInstance

v-model双向数据绑定默认用的还是原来的value属性和input事件，不是vue3.0中的v-bind:modelValue="xxx"的modelValue属性和update:modelValue事件;

ref无法获取组件实例ref引用;

<share ref="shareRef" ></share>  
const shareRef = ref(null)  
onMounted(() => {  
console.log('onMounted, shareRef: ', shareRef.value)//此处打印null,undefined  
})