错误代码：

子组件：

<template> <div v-show="showMine"> <div class="mask" @click.self="onMask"></div> <transition name="slide-fade"> <div class="my_group" v-if="showMine">我的</div> </transition> </div></template> <script>export default { name: "mine", props: ["showMine"], data() { return {}; }, methods: { onMask() { this.$emit("onMask"); } }};</script> <style lang="less" scoped>.mask { width: 100%; height: 100%; position: fixed; top: 0; left: 0; bottom: 0; right: 0; background-color: rgba(0, 0, 0, 0.1); z-index: 10;}.my_group { width: 60%; top: 0; bottom: 0; height: 100%; background-color: #fff; position: fixed; z-index: 11;}.slide-fade-enter-active,.slide-fade-leave-active { transition: all 0.3s ease;}.slide-fade-enter,.slide-fade-leave-to { transform: translateX(-100%); transition: all 0.3s ease;}</style>

父组件：

<template> <div class="headers"> <div class="nav"> <div class="mine" @click="onMine"> <i class="cubeic-person"></i> </div> <div class="city"> 深圳市 <i class="cubeic-pulldown"></i> </div> <div class="info"> <i class="cubeic-message"></i> </div> </div> <app-mine :showMine="showMine" @onMask="onMask" /> </div></template> <script>import appMine from "../Mine";export default { name: "headers", components: { "app-mine": appMine }, data() { return { showMine: false }; }, methods: { onMine() { this.showMine = true; }, onMask() { this.showMine = false; } }};</script> <style lang="less" scoped>.nav { display: flex; justify-content: space-between; align-items: center; width: 100%; height: 1.066667rem; padding: 0 0.266667rem; box-sizing: border-box; font-size: 0.48rem; .city { font-size: 0.373333rem; color: #7e7e7e; }}.mine,.info,.city { height: 100%; line-height: 1.066667rem;}</style>

效果：

修改代码只要把子组件中的的showMine放在mask元素中就可以

效果:

以上这篇vue transition 在子组件中失效的解决就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。