本文实例为大家分享了vue递归实现三级菜单的具体代码，供大家参考，具体内容如下
父组件
<template>
<div class="menu-level-menu menu-level-menu-enter" v-if="showLevelMenu">
<menu-item class="menu-item" :menuDate="menuList"></menu-item>
</div>
</template>子组件
<template>
<div>
<div class="" v-for="(menu, index) in menuDate" :key="index">
// 每一个菜单项
<div class="menu-row" @click="menuSpread(menu)"
:class="[{'menu-row-selected': menu.selected && menu.children.length <= 0}]">
<div class="menu-row-left">
<div class="menu-row-left-line" :class="[{'menu-selected': menu.selected && menu.children.length <= 0}]"></div>
<i class="iconfont" :class="[menu.menuIcon, {'color-icon': showIconColor(menu)}]"></i>
</div>
<div class="menu-row-right">
<span :class="[{'font-16': menu.level === '0'}]">{{menu.menuName}}</span>
<i class="c" v-if="menu.children.length <= 0"></i>
<i class="iconfont icon-liebiaoxiala" v-if="menu.children.length>0 && !menu.selected"></i>
<i class="iconfont icon-liebiaoshouqi" v-if="menu.children.length>0 && menu.selected"></i>
</div>
</div>
// 递归展示菜单
<menu-item v-show="menu.selected" v-if="menu.children.length>0" :menuDate="menu.children"></menu-item>
</div>
</div>
</template>
<script>
export default {
props: {
menuDate: Array
},
name: 'MenuItem',
methods: {
menuSpread (menu) {
if (menu.menuRouter) this.$router.push(menu.menuRouter);
menu.selected = !menu.selected;
this.recursion(this.menuDate, menu);
},
recursion (all, temp) {
all.forEach(item => {
if (item.menuName !== temp.menuName) {
item.selected = false;
this.recursion(item.children, temp);
}
});
},
showIconColor (menu) {
let show = false;
if (menu.level === '0') {
menu.children.forEach(item => {
if (item.children.length <= 0 && item.selected) {
show = true;
}
if (item.children.length > 0) {
item.children.forEach(item => {
if (item.selected) {
show = true;
}
});
}
});
}
return show;
}
}
};
</script>效果图
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
