正文
Vue.js的初步使用
小程序：扫一扫查出行【扫一扫了解最新限行尾号】
复制小程序
1.声明式渲染
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../vue.js"></script></head>
<body>
<div id="app-2">
<span v-bind:title="message">
鼠标悬停几秒钟查看此处动态绑定的提示信息！
</span>
</div>
</body>
<script>
var app2 = new Vue({
el:'#app-2',
data:{
message:'页面加载于' + new Date().toLocaleString()
}
})
</script>
</html>
2.v-if判断是否显示
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../vue.js"></script></head>
<body>
<div id="app-3">
<p v-if="seen">现在你看到我了</p>
</div>
</body>
<script>
var app3 = new Vue({
el:'#app-3',
data:{
seen:true
}
})
// app3.seen=false</script>
</html>
3.v-for遍历渲染
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../vue.js"></script></head>
<body>
<div id="app-4">
<ol>
<li v-for="todo in todos">
{{todo.text}}
</li>
</ol>
</div>
</body>
<script>
var app4 = new Vue({
el:'#app-4',
data:{
todos:[
{text:'学习JavaScript'},
{text:'学习Vue'},
{text:'学习Flask'}
]
}
})
app4.todos.push({ text: '新项目' })
</script>
</html>
4.v-on事件翻转字符串
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../vue.js"></script></head>
<body>
<div id="app-5">
<p>{{message}}</p>
<button v-on:click="reverseMessage">逆转消息</button>
</div>
</body>
<script>
var app5 = new Vue({
el:'#app-5',
data:{
message:'hello Vue.js' },
methods:{
reverseMessage:function () {
//逆转消息
this.message = this.message.split('').reverse().join('')
}
}
})
</script>
</html>
5.v-model处理用户输入数据
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../vue.js"></script></head>
<body>
<div id="app-6">
<p>{{message}}</p>
<input v-model="message">
</div>
</body>
<script>
var app6 = new Vue({
el:'#app-6',
data:{
message:'hello Vue!'
}
})
</script>
</html>
6.v-bind处理标签属性
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../vue.js"></script></head>
<body>
<div id="app-7">
<ol>
<todo-item
v-for="item in groceryList"
v-bind:key="item.id"
v-bind:todo="item"
> </todo-item>
</ol>
</div></body>
<script>
Vue.component('todo-item', { props: ['todo','key'],
template: '<li>{{todo.text}}</li> '
}); var app7 = new Vue({
el:'#app-7',
data:{
groceryList:[
{id:0,text:'蔬菜'},
{id:1,text:'水果'},
{id:2,text:'肉类'},
]
} })
</script>
</html>
