代码实现有问题，请老师解答，谢谢
来源：2-5 组件和元素切换动画的实现
叫我丽红
2021-10-26 16:52:00
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>lesson 10</title>
<style>
.v-enter-from,
.v-leave-to{
opacity: 0;
}
.v-enter-active,
.v-leave-active{
transition: opacity 3s ease-in;
}
.v-enter-to,
.v-leave-from{
opacity: 1;
}
</style>
<script src="https://unpkg.com/vue@next"></script>
</head>
<body>
<div id="root"></div>
</body>
<!-- 样式绑定语法 -->
<script>
// 多个单元素标签之间的切换
// 多个单组件之间的切换
const ComponentA = {
template:'<div>hello world</div>'
}
const ComponentB = {
template:'<div>bye world</div>'
}
const app = Vue.createApp({
data(){
return{
component:' component-a'
}
},
methods:{
handleClick(){
if(this.component === 'component-a'){
this.component='component-b';
}else{
this.component='component-a';
}
},
},
components:{
'component-a':ComponentA,
'component-b':ComponentB,
},
template:`
<div>
<transition mode="out-in" appear>
<component :is="component" />
</transition>
<button @click="handleClick">切换</button>
</div>
`
})
const vm = app.mount('#root');
</script>
</html>
1回答
-
好帮手慕慕子
2021-10-26
同学你好，因为data中定义component的属性值前面有一个空格，导致无法实现效果，去掉就好了。示例：
祝学习愉快~
0
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