vue el-table实现递归嵌套的示例代码

说明： el-table有一个表格一级数据和二级数据显示的是一样的，像这种就可以用递归实现。
数据结构是这样子的：

tableData:[{
	name: "Lucy",
	age: 18,
	mobile: "11111111111",
	type: 1,
	friends:[{
		name: "Lucy-friend1"，
		age: 16,
		mobile: "11111111111"
	},{
		name: "Lucy-friend2"，
		age: 16,
		mobile: "11111111111"
	}]
}]

像以上这种数据结构想要如下图一样显示：

我用的是el-table组件，所以单独建了一个组件用于表格递归显示。regionTableTemplate里expend中用到的递归显示二级数据
代码如下：

<template>
    <el-table :data="tableData" class="table-sub" ref="regionTable" :show-header="showHeader" :row-class-name="isShowExpend">
        <el-table-column type="expand">
            <template slot-scope="scope">
                <template v-if="scope.row.friends">
                    <regionTableTemplate class="in-table" :tableData="scope.row.friends" :showHeader="false"></regionTableTemplate>
                </template>
            </template>
        </el-table-column>
        <el-table-column prop="name" label="姓名"></el-table-column>
        <el-table-column prop="age" label="年龄"></el-table-column>
        <el-table-column prop="mobile" label="手机号"></el-table-column>
        <el-table-column label="操作" width="220">
            <template slot-scope="scope">
                <el-button type="text">详情</el-button>
                <el-button type="text"> 创建可用区</el-button>
                <el-button :disabled="scope.row.type === 1?true:false" type="text">删除</el-button>
            </template>
        </el-table-column>
    </el-table>
</template>

<script>
export default {
    name: "regionTableTemplate",
    props:{
        tableData: Array,
        showHeader: Boolean
    },
    methods:{
        //展开行  用于没有friends数组即没有子数据
        isShowExpend(row, index) {
            if (row.row.friends&&row.row.friends) {
                return ''
            } else {
                return 'hide-expand'
            }
        }
    }
}
</script>

<style>

</style>

父组件调用

<template>
    <div id="ops-region-wrapper">
        <div class="ops-list-wrapper">
            <table-vue :tableData="tableData" :showHeader="true" @showRegionFlag="showRegionFlag" @showDelDialog="showDelDialog"></table-vue>
            <Pager :pages='pages' @changeCurrent='changeCurrent'></Pager>
        </div>
    </div>
</template>

<script>
import Pager from '@/components/Pager.vue';
import tableVue from './components/table.vue';
export default {
    components:{
        Pager,
        tableVue
    },
    data() {
        return {
            tableData: [{
				name: "Lucy",
				age: 18,
				mobile: "11111111111",
				type: 1,
				friends:[{
					name: "Lucy-friend1"，
					age: 16,
					mobile: "11111111111"
				},{
					name: "Lucy-friend2"，
					age: 16,
					mobile: "11111111111"
				}]
			}],
            pages: {//分页
                showItem: 15,
                total: 0,
                currentPage: 1
            },
        }
    },
    methods: {
        //分页
        changeCurrent(val) {
            this.pages.currentPage = val;
        }
    },
    mounted() {
        this.getList();
    }
}
</script>

<style lang="scss">
#ops-region-wrapper{
    .el-table {
        margin-top: 15px;
        tr .el-table__expanded-cell {
            padding: 0;
            border-bottom: none;
        }
        .el-table__expand-icon {
            width: 18px;
            height: 18px;
            line-height: 16px;
            background: rgba(54, 134, 255, 0.2);
            color: #3686ff;
            border: 1px solid #3686FF;
            box-sizing: border-box;
            border-radius: 50%;
            transform: scale(0.8);
            i {
                font-weight: bold;
                font-size: 12px;
                left: 48%;
            }
        }
        .el-table__expand-icon--expanded{
            transform: rotate(90deg) scale(0.8);
        }
        .hide-expand .el-table__expand-column>.cell {
            display: none;
        }
    }
    .in-table{
        &::before{
            border: none;
        }
        margin: 0;
        padding: 0;
        .el-table__expand-column>.cell,.el-table__expanded-cell {
            display: none;
        }
    }
    .el-button--text {
        margin: 0 20px 0 0;
        @include pageFont(12px, #006EFF, 400, "PingFangSC-Regular, PingFang SC", 17px);
        &.is-disabled{
            color: #979797;
        }
    }
    .is-click {
        cursor: pointer;
        text-decoration: underline;
        text-decoration-color: #3686FF;
        @include pageFont(12px, #3686FF, 400, "PingFangSC-Regular, PingFang SC", 17px);
    }
}
</style>

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