<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Hello World</title> <!-- <script src="/assets/js/vue.js"></script> --> <script src="E:\Code\Vue\assets\js\vue.js"></script> </head> <body> <div id="app"> <input type="text"/> <button>提交</button> <ul> <li>第一课的内容</li> <li>第二课的内容</li> </ul> </div> </body> </html>
v-for指令:
<body> <div id="app"> <input type="text"/> <button>提交</button> <ul> <li v-for="item in list">{{item}}</li> </ul> </div> <script> var app = new Vue({ el: '#app', data: { list: ['第一课的内容', '第二课的内容','第三课的内容'] } }) </script> </body>
v-on指令:
<body> <div id="app"> <input type="text"/> <button v-on:click="handleBtnClick">提交</button> <ul> <li v-for="item in list">{{item}}</li> </ul> </div> <script> var app = new Vue({ el: '#app', data: { list: [] }, methods: { handleBtnClick: function(){ alert('click') } } }) </script> </body>
点击提交按钮:
按钮绑定点击事件,会在methods里找handleBtnClick方法
v-model指令:
数据双向绑定
<body> <div id="app"> <input type="text" v-model="inputValue"/> <button v-on:click="handleBtnClick">提交</button> <ul> <li v-for="item in list">{{item}}</li> </ul> </div> <script> var app = new Vue({ el: '#app', data: { list: [], inputValue: '' }, methods: { handleBtnClick: function(){ alert('click') } } }) </script> </body>
F12打开调试:
input框输入123333:
控制台改变inputValue值:
点击提交按钮,弹出输入框输入的内容:
<body>
<div id="app">
<input type="text" v-model="inputValue"/>
<button v-on:click="handleBtnClick">提交</button>
<ul>
<li v-for="item in list">{{item}}</li>
</ul>
</div>
<script>
var app = new Vue({
el: '#app',
data: {
list: [],
inputValue: ''
},
methods: {
handleBtnClick: function(){
alert(this.inputValue)
}
}
})
</script>
</body>
初始list为空,input框输入内容,点击button按钮,生成li标签:
往list里添数据
<body>
<div id="app">
<input type="text" v-model="inputValue"/>
<button v-on:click="handleBtnClick">提交</button>
<ul>
<li v-for="item in list">{{item}}</li>
</ul>
</div>
<script>
var app = new Vue({
el: '#app',
data: {
list: [],
inputValue: ''
},
methods: {
handleBtnClick: function(){
this.list.push(this.inputValue)
}
}
})
</script>
</body>
提交之后把input框清空:
<body>
<div id="app">
<input type="text" v-model="inputValue"/>
<button v-on:click="handleBtnClick">提交</button>
<ul>
<li v-for="item in list">{{item}}</li>
</ul>
</div>
<script>
var app = new Vue({
el: '#app',
data: {
list: [],
inputValue: ''
},
methods: {
handleBtnClick: function(){
this.list.push(this.inputValue)
this.inputValue = ''
}
}
})
</script>
</body>