<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="app">
<news></news>
</div>
<template id="news">
<div :style='{fontSize:fontSize+"px"}'>
<h3>新闻列表</h3>
<sleep :articles="articleList" @add="change"></sleep>
</div>
</template>
<template id="sleep">
<ul>
<li v-for="article in articles" :key="article.id">
<h3>{{article.title}}</h3>
<button @click="add">放大字号</button>
<div>{{article.content}}</div>
</li>
</ul>
</template>
<script>
new Vue({
el: '#app',
components: {
News: {
data() {
return {
articleList: [
{ title: '论睡觉的重要性', content: '孔子曰:“中午不睡,下午崩溃”;老子曰:“孔子说的对!”', id: 0 },
{ title: '论早起的严重性', content: '早起五分钟,蒙逼两小时”', id: 1 },
{ title: '论手机与睡觉的关联性', content: '睡觉前的最后一件事是放手机,早上起床的第一件事是摸手机', id: 2 },
],
fontSize:16, //字体大小
}
},
template:'#news',
components:{
Sleep:{
props:{
articles:Array,
},
template:'#sleep',
methods:{
add(){
this.$emit('add',3);
}
}
}
},
methods:{
change(step){
console.log(step)
this.fontSize+=step;
}
}
}
}
});
</script>
</body>
</html>