v-for:
v-for 指令需要以 site in sites 形式的特殊语法， sites 是源数据数组并且 site 是数组元素迭代的别名。
demo1.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script src="../js/vue.js"></script>
</head>
<body>
<div id="div1">
<table align="center" >
<tr class="firstLine">
<td>name</td>
<td>hp</td>
</tr>
<tr v-for="hero in heros">
<td>{{hero.name}}</td>
<td>{{hero.hp}}</td>
</tr>
</table>
</div>
<script>
var data = [
{name:"a",hp:341},
{name:"b",hp:225},
{name:"c",hp:427},
{name:"d",hp:893}
];
new Vue({
el: '#div1',
data: {
heros:data
}
})
</script>
</body>
</html>
2.显示下标
<div id="div1">
<table align="center" >
<tr class="firstLine">
<td>name</td>
<td>hp</td>
<td>index</td>
</tr>
<tr v-for="hero,index in heros">
<td>{{hero.name}}</td>
<td>{{hero.hp}}</td>
<td>{{index}}</td>
</tr>
</table>
</div>
3.遍历数字
<div v-for="i in 10" style="margin-left: 25rem;">
<td>{{i}}</td>
</div>
demo4
<div id="app">
<ul>
<li v-for="o in ob">
{{o}}
</li>
<br />
<li v-for="(key ,value) in ob">
{{key}}:{{value}}
</li>
<br />
<li v-for="(index,key,value) in ob">
{{index}} , {{key}} , {{value}}
</li>
</ul>
</div>
<script>
new Vue({
el:'#app',
data:{
ob:{
name:'happy',
age:'111',
id:'11'
}
}
})
</script>