这个怎么也显示不出来
作者:互联网
<div id="app" class="demo">
<child @greet="sayHello"></child>
</div>
<script src="https://unpkg.com/vue@next"></script>
<script>
const app = Vue.createApp({});
app.component('child', {
data: function() {
return {
name: '张三'
}
},
methods: {
handleClick() {
this.$emit('greet', this.name);
}
},
template: '<button @click="handlerClick">开始欢迎</button>',
sayHello(name) {
alert("Hello," + name )
}
})
.mount('#app')
</script>
标签:怎么,显示,createApp,name,出来,app,sayHello,const,methods 来源: https://blog.csdn.net/weixin_40945354/article/details/119380790