vue实现树形结构样式和功能的实例代码实现树形结构样式和功能的实例代码
一、主要运用element封装的控件并封装成组件运用,如图所示
代码如图所示:
下面是子组件的代码:
<template>
<ul class="l_tree">
<li class="l_tree_branch" v-for="item in model" :key="item.id">
<div class="l_tree_click">
<button type="button" class="l_tree_children_btn" v-if="item.children" @click="toggle(item)">{{ !item.show ? '-' : '+' }}</button>
<span class="l_folder" @click="clickSize(item.id)" :class="current === item.id ? 'current' : 'currentSize'">{{ item.name }}</span>
</div>
<ew-tree
v-show="!item.show"
:model="item.children"
:current="current"
@change="changeCurrent"></ew-tree>
</li>
</ul>
</template>
<script>
export default {
name: 'EwTree',
props: {
model: {
type: Array,
default() {
return [] }
},
current: {
type: String,
default: ''
}
},
methods: {
toggle(item) {
console.log(item)
var idx = this.model.indexOf(item)
this.$set(this.model[idx], 'show', !item.show)
},
clickSize(id) {
console.log(1, id)
this.$emit('change', id)
},
changeCurrent(id) {
this.clickSize(id)
}
},
mounted() {
}
}
</script>