在Vue中父組件向子組件中傳送數據是通過props實現的，一個簡單的使用props的例子：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue Study</title>
</head>
<body>
<div id="app">
<foo-component :foo-message="fooMessage"></foo-component>
</div>
<script type="text/javascript" src="lib/vue.js"></script>
<script type="text/javascript">
var fooComponent = {
props: ['fooMessage'],
template: '<div> {{ fooMessage }} </div>'
};
var vm = new Vue({
components: {
'foo-component': fooComponent
},
el: '#app',
data: {
fooMessage: 123
}
});
</script>
</body>
</html>
