vue 封装组件

props 接收数据

props对象里面 键值 是对改数据的 数据类型 的规定。做了规范，使用者就只能传输指定类型的数据，否则报警告

先根据要求写出完整的代码，再一一用参数实现组件封装

这里试着封装一个select组件，主要是为了了解组件封装。参考自博客：https://www.cnblogs.com/pengfei-nie/p/9134367.html

效果：

sleceView：

<template>
    <div class="partake">
        <div class="f-search" :class="{searchInFous: this.fousFlag}">
            <div class="f-searchIn">
                {{this.searchV}}
                <span :class="{searchActive: this.searchFlag}" @click="searchDown"></span>
            </div>
            <div class="f-searchXl" v-if="this.dataHas" :style="{height:this.searchFous, border:this.searchBorder}">
                <div v-for="(item,index) in searchList" @click="choseValue(item.value, item.key)" :key="index">{{item.value}}</div>
            </div>
            <div class="f-searchXl" v-else >
                <div>暂无数据</div>
            </div>
        </div>
    </div>
</template>

<script>
export default {
    name: 'xuef',
    props: {
        searchList: Array,
        selectValue: String
    },
    data() {
        return {
            searchV: '',
            searchFlag: false,
            searchFous: '0',
            searchBorder: 'none',
            fousFlag: false,
            dataHas: true
        };
    },
    methods:{
        searchDown() {
            this.searchFlag === false ? this.searchFlag = true : this.searchFlag = false
            this.searchFous === '0' ? this.searchFous = 'auto' : this.searchFous = '0'
            this.searchBorder === 'none' ? this.searchBorder = '1px solid #D9D9D9' : this.searchBorder = 'none'
            this.fousFlag === false ? this.fousFlag = true : this.fousFlag = false
        },
        choseValue(value, key) {
            this.searchV = value
            this.searchDown()
            this.$emit('selectFunction', value, key)
        }
    },
    components:{
    }
}
</script>

<style scoped rel="stylesheet/scss" lang="scss">
    .f-search{
        width: 250px;
        height: auto;
        position: relative;
        margin-left: 20px;
        box-sizing: border-box;
    }
    .f-searchIn{
        width: 250px;
        height: 35px;
        line-height: 35px;
        font-size: 0.95rem;
        border-radius: 5px;
        overflow: hidden;
        position: relative;
        background-color: white;
        box-shadow: none;
        box-sizing: border-box;
        color: #000000;
        padding-left: 10px;
        border: 1px solid #A3A3A3;
    }
    .searchInFous{
        border: 1px solid #57C4F6;
        box-shadow: 0px 0px 5px #57C4F6;
    }
    .f-searchIn > span{
        display: block;
        width: 28px;
        height: 28px;
        background-image: url(../../assets/images/down.png);
        background-size: 100% 100%;
        background-repeat: no-repeat;
        background-position: 0px -13px;
        position: absolute;
        top: 10px;
        right: 5px;
    }
    .f-searchIn .searchActive{
        background-position: 0px 12px;
        top: -2px;
    }
    .f-search .f-searchXl{
        position: absolute;
        width: 100%;
        height: auto;
        max-height: 220px;
        top: 41px;
        left: -1px;
        border-radius: 5px;
        /*border: 1px solid #D9D9D9;*/
        background-color: white;
        overflow-x: hidden;
        overflow-y: scroll;
    }
    .f-search .f-searchXl > div{
        height: 35px;
        line-height: 38px;
        color: #000000;
        padding-left: 25px;
        font-size: 0.92rem;
    }
    .f-search .f-searchXl > div:hover{
        background-color: #D5F1FD;
    }
</style>

引用这个组件的view：useSelect

<template>
    <div class="partake">
        <section class="f-mainPage">
            <search @selectFunction="selectFunc" :searchList="searchList" :selectValue="selectValue"></search>
        </section>
    </div>
</template>

<script>
import search from 'components/component/selectView';
export default {
    name: 'xuef',
    data() {
        return {
            searchList: [{key:'1',value:'草船借箭'},{key:'2',value:'大富翁'},{key:'3',value:'测试数据'}],
            selectValue: '',
            selectKey: ''
        };
    },
    methods:{
        selectFunc(val,key) {
            this.selectValue = val
            this.selectKey = key
            console.log(this.selectKey)
            console.log(this.selectValue)
        }
    },
    components:{
        search
    }
}
</script>