uni app 树状结构数据展示

树状数据展示，可以点击item 将点击数据给父组件，满足自己需求。不喜勿喷，很简单可以根据自己需求改哈，不要问，点赞收藏就好

<template><view><view v-for="(node, index) in treeData" :key="node.id"><view v-if="!node.ishow"><view v-if="uselast"><view v-if="node.children.length > 0"><view :style="'margin-left:'+(zjflag*30+32)+'rpx;'" class="item_name_ef"@tap.stop.prevent="item_click" :data-set="node" :id="index"><view><text v-if="node.children":style="'color:'+colors[zjflag]+';margin-right:10rpx'">{{title[zjflag]}}</text>{{ node.name }}</view><text style="margin-left: 32rpx;color:#f00" v-if="node.children&&node.children.length > 0"@tap.stop.prevent="open_item(index)">{{image[node.isopen?0:1]}}</text></view></view><view v-else><view :style="'margin-left:'+(zjflag*30+32)+'rpx;'" class="item_name"@tap.stop.preventclick="item_click" :data-set="node" :id="index"><view><text v-if="node.children":style="'color:'+colors[zjflag]+';margin-right:10rpx'">{{title[zjflag]}}</text>{{ node.name}}</view><text style="margin-left: 32rpx;color:#f00" v-if="node.children&&node.children.length > 0"@tap.stop.prevent="open_item(index)">{{image[node.isopen?0:1]}}</text></view></view></view><view v-else><view :style="'margin-left:'+(zjflag*30+32)+'rpx;'" class="item_name" @tap.stop.prevent="item_click":data-set="node" :id="index"><view><text v-if="node.children":style="'color:'+colors[zjflag]+';margin-right:10rpx'">{{title[zjflag]}}</text>{{ node.name }}</view><text style="margin-left: 32rpx; color:#f00" v-if="node.children&&node.children.length > 0"@tap.stop.prevent="open_item(index)">{{image[node.isopen?0:1]}}</text></view></view></view><view v-if="node.isopen"><tree-node v-if="node.children && node.children.length > 0" :tree-data="node.children"@callBack="mycallback" :uselast="uselast" :zjflag="zjflag+1" /></view></view></view>
</template><script>import TreeNode from './TreeNode.vue';export default {components: {TreeNode},name: 'TreeNode',props: {treeData: {type: Array,required: true,},uselast: {type: Boolean,default: false},callback: {type: String,default: ''},showkey: {type: String,default: ''},zjflag: {type: Number,default: 0}},data() {return {title: ["①", "②", "③", "④", "⑤", "⑥", "⑦", "⑧", "⑨", "⑩"],// image: ["🔺", "🔻"]image: ["关", "开"],colors: ['#ff0', '#f00', '#00f', '#0ff', '#f0f', '#0f0'],}},methods: {item_click: function(e) {// console.log("item_click", JSON.stringify(item.currentTarget.dataset.set))let id = e.currentTarget.idlet item = e.currentTarget.dataset.setif (this.uselast) {if (item.children.length == 0) {this.$emit('callBack', {mydetail: item});} else {this.treeData[id].isopen = !this.treeData[id].isopen}} else {this.$emit('callBack', {mydetail: item});}// if (item.isopen) {// 	this.treeData[id].isopen = false// } else {// 	this.treeData[id].isopen = true// }this.$forceUpdate()},open_item: function(id) {this.treeData[id].isopen = !this.treeData[id].isopenthis.$forceUpdate()},mycallback: function(item) {this.$emit('callBack', {mydetail: item});}},};
</script><style lang="scss" scoped>@function tovmin($rpx) {//$rpx为需要转换的字号@return #{$rpx * 100 / 750}vmin;}.item_name {display: flex;justify-content: space-between;font-size: 28;padding-top: 5rpx;padding-bottom: 5rpx;flex: 1;min-height: tovmin(80);align-items: center;text-align: left;margin-right: tovmin(64);color: #333;font-weight: 600;overflow-y: auto;overflow-x: scroll;border-bottom: solid #efefef 2rpx;white-space: normal;word-break: break-all;word-wrap: break-word;}.item_name_ef {font-size: 28;padding-top: 5rpx;padding-bottom: 5rpx;flex: 1;min-height: tovmin(80);display: flex;align-items: center;justify-content: left;text-align: left;margin-right: tovmin(32);color: #999;font-weight: 600;overflow-y: auto;overflow-x: scroll;border-bottom: solid #efefef 2rpx;white-space: normal;word-break: break-all;word-wrap: break-word;}
</style>

讲一下

treeData 树状数据

uselast 只能使用末级

showkey 列表要展示的字段

zjflag 树状结构第几层默认0开始

使用在父组件

引用组件

import TreeNode from './TreeNode.vue';

components: {

           TreeNode
       },

<tree-node :tree-data="treeData" uselast="true" @callBack="tree_node_back"></tree-node>

treeData: [{
                       id: 1,
                       name: '节点1',
                       ishow: false,
                       isopen: true,
                       children: [{
                               id: 2,
                               name: '子1-节点1',
                               ishow: false,
                               isopen: true,
                               children: []
                           },
                           {
                               id: 3,
                               name: '子2-节点1',
                               ishow: false,
                               isopen: true,
                               children: [{
                                   id: 4,
                                   name: '孙1-子2-节点1',
                                   ishow: false,
                                   isopen: true,
                                   children: []
                               }]
                           },
                       ],
                   },
                   {
                       id: 5,
                       name: '节点2',
                       ishow: false,
                       isopen: true,
                       children: [{
                               id: 6,
                               name: '子1-节点2',
                               ishow: false,
                               isopen: true,
                               children: [{
                                   id: 8,
                                   name: '孙1-子1-节点2',
                                   ishow: false,
                                   isopen: true,
                                   children: [{
                                       id: 8,
                                       name: '重1-孙1-子1-节点2',
                                       ishow: false,
                                       isopen: true,
                                       children: [{
                                           id: 9,
                                           name: '曾1-重1-孙1-子1-节点2',
                                           ishow: false,
                                           isopen: true,
                                           children: [{
                                               id: 9,
                                               name: '僧1-曾1-重1-孙1-子1-节点2',
                                               ishow: false,
                                               isopen: true,
                                               children: []
                                           }]
                                       }]
                                   }]
                               }]
                           },
                           {
                               id: 7,
                               name: '子2-节点2',
                               ishow: false,
                               isopen: true,
                               children: [{
                                   id: 8,
                                   name: '孙1-子2-节点2',
                                   ishow: false,
                                   isopen: true,
                                   children: [{
                                       id: 8,
                                       name: '重1-孙1-子2-节点2',
                                       ishow: false,
                                       isopen: true,
                                       children: [{
                                           id: 9,
                                           name: '曾1-重1-孙1-子2-节点2',
                                           ishow: false,
                                           isopen: true,
                                           children: [{
                                               id: 9,
                                               name: '僧1-曾1-重1-孙1-子2-节点2',
                                               ishow: false,
                                               isopen: true,
                                               children: []
                                           }]
                                       }]
                                   }]
                               }]
                           },
                       ],
                   },