语法发生了变化：http://blog.csdn.net/sinat_35512245/article/details/53966788
新数组语法
value in arr
(value, index) in arr
新对象语法
value in obj (value, key) in obj
(value, key, index) in obj
对 Vue.js——60分钟快速入门 的demo修改之后的源码为：
<!DOCTYPE html>
<html> <head>
<meta charset="UTF-8">
<title></title>
<script src="js/vue.js"></script> </head> <body>
<div id="app"> <fieldset>
<legend>
Create New Person
</legend>
<div class="form-group">
<label>Name:</label>
<input type="text" v-model="newPerson.name"/>
</div>
<div class="form-group">
<label>Age:</label>
<input type="text" v-model="newPerson.age"/>
</div>
<div class="form-group">
<label>Sex:</label>
<select v-model="newPerson.sex">
<option value="Male">Male</option>
<option value="Female">Female</option>
</select>
</div>
<div class="form-group">
<label></label>
<button @click="createPerson">Create</button>
</div>
</fieldset>
<table>
<thead>
<tr>
<th>Index</th>
<th>Name</th>
<th>Age</th>
<th>Sex</th>
<th>Delete</th>
</tr>
</thead>
<tbody>
<tr v-for="(person,index) in people">
<td>{{ index }}</td>
<td>{{ person.name }}</td>
<td>{{ person.age }}</td>
<td>{{ person.sex }}</td>
<td :class="'text-center'"><button @click="deletePerson(index)">Delete</button></td>
</tr>
</tbody>
</table>
</div>
</body>
<script src="js/vue.js"></script>
<script>
var vm = new Vue({
el: '#app',
data: {
newPerson: {
name: '',
age: 0,
sex: 'Male'
},
people: [{
name: 'Jack',
age: 30,
sex: 'Male'
}, {
name: 'Bill',
age: 26,
sex: 'Male'
}, {
name: 'Tracy',
age: 22,
sex: 'Female'
}, {
name: 'Chris',
age: 36,
sex: 'Male'
}]
},
methods:{
createPerson: function(){
this.people.push(this.newPerson);
// 添加完newPerson对象后，重置newPerson对象
this.newPerson = {name: '', age: 0, sex: 'Male'}
},
deletePerson: function(index){
// 删一个数组元素
this.people.splice(index,1);
}
}
})
</script> </html>