<!-- 即便 `42` 是静态的，我们仍然需要 `v-bind` 来告诉 Vue -->
<!-- 这是一个 JavaScript 表达式而不是一个字符串。-->
<blog-post v-bind:likes="42"></blog-post>
```html
<!DOCTYPE html>
<html lang="zh">
<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>传入一个数字</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="hzh">
<hzh-component v-bind:likes="42"></hzh-component>
</div>
<script>
Vue.component('hzh-component', {
props: ['likes'],
template: '<h3>点赞数：{{likes}}</h3>'
})
new Vue({
el: '#hzh'
})
</script>
</body>
<!-- 用一个变量进行动态赋值。-->
<blog-post v-bind:likes="post.likes"></blog-post>
<!DOCTYPE html>
<html lang="zh">
<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>传入一个数字</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="hzh">
<hzh-component v-for="post in posts" v-bind:key="post.id" v-bind:likes="post.likes"></hzh-component>
</div>
<script>
Vue.component('hzh-component', {
props: ['likes'],
template: '<div>点赞数：{{likes}}</div>'
})
new Vue({
el: '#hzh',
data: {
posts: [
{ id: 1, likes: 42}
]
}
})
</script>
</body>
