因项目需要，要实现仿word方式录入数据，要实现鼠标经过时才显示编辑组件，预览及离开后则显示具体的文字。

鼠标经过时显示

正常显示及离开时显示

 组件代码

<template >
    <div class="paper-input flex flex-col border-box "   >
        <div  class="font-l border-box text margin-left-m text" style="font-family: FangSong;">{{text}}</div>
        <div class="flex flex-col  input hidden">
            <input type="text" v-model="value1" maxlength="4" ref="date1"   @input="changeToNext1(value1)"/>
            年
            <input type="text" v-model="value2" maxlength="2" ref="date2"  @input="changeToNext2(value2)"/>
            月
            <input type="text" v-model="value3" maxlength="2" ref="date3"  @input="changeToNext3(value3)"/>
            日
        </div>
    </div>
</template>

<script>
    export default{
        name:'PagerInput',
        data() {
            return {
                val:"",
                text:"年  月  日",
                value1:"",
                value2:"",
                value3:"",
            }
        },
        props: {
            value:{}
        },
        model: {
            prop: "value",
            event: "change"
        },
        watch:{
            value:{
                handler(newValue) {
                    if (newValue != null && newValue.length >0) {
                        let arr = newValue.split("-")
                        if ( arr.length === 3 ) {
                            this.value1 = arr[0]
                            this.value2 = arr[1]
                            this.value3 = arr[2]
                            this.setText();
                        }
                    }

                    this.val =  newValue;
                    
                },
                immediate: true,
                deep: true   //深度监听                
            },
        },
        methods:{
            changeToNext1(v) {
                if (v.toString().length === 4) {
                    this.$nextTick(() => {
                    this.$refs.date2.focus();
                    });
                }
                this.setText();
                this.setValue();
            },
            changeToNext2(v) {
                if (v.toString().length === 2) {
                    this.$nextTick(() => {
                    this.$refs.date3.focus();
                    });
                }
                this.setText();
                this.setValue();
            },
            changeToNext3(v) {
                this.setText();
                this.setValue();
            },
            setValue() {
                this.$emit("change", this.value1 + "-" + this.value2 + "-" + this.value3 );
            },
            setText() {
                this.text = this.value1 + "年" + this.value2 + "月" + this.value3 + "日"
            }

        }
    }
</script>

<style scoped>

    .paper-input:hover .text   {
        display: none;
    }
 
    .paper-input:hover .textplus   {
        display: none;
    }
    .paper-input:hover .input   {
        display: block;
    }
    .paper-input input {
        width: 50px;
    }

    


</style>

引用组件，支持数据双向绑定

 <PaperDateInput v-model="paperData.protocolTime" ></PaperDateInput>