新建项目：
导入依赖： <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
基本语法
v-bind指令：可以动态绑定变量message
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<span v-bind:title="message">
<!-- 鼠标悬停时展示message-->
我在这里
</span>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<script>
var vm=new Vue({
el:"#app",
data:{
message:"hello,vue!"+new Date().toLocaleString()
}
});
</script>
</body>
</html>
View Code
v-if，v-else:
动态绑定布尔值变量ok的值，在网页控制台通过vm.ok=false测试页面的变化
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<!--view层模板-->
<div id="app">
<h1 v-if="ok">Yes</h1>
<h1 v-else>No</h1>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<script>
var vm=new Vue({
el:"#app",
data:{
// 布尔型的变量
ok:true
}
})
</script>
</body>
</html>
View Code
v-for：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<li v-for="(item,index) in items">
{{item.message}}--{{index}}
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<script>
var vm=new Vue({
el:"#app",
data:{
items:[
{message:'狂神java'},
{message:'狂神java2'},
{message:'狂神java3'},
]
}
});
</script>
</body>
</html>
View Code
动态绑定布尔值变定义方法methods：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<button v-on:click="sayhello">点击这里</button>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<script>
var vm=new Vue({
el:"#app",
data:{
message:'狂神java'
},
methods:{
sayhello:function (){
alert(this.message);
}
}
});
</script>
</body>
</html>
View Code
<!--
动态绑定：
在修改v-model中message的值时，也会同时改变{{message}}
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
输入的文本内容：<input type="text" v-model="message">{{message}}
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<script>
var vm=new Vue({
el:"#app",
data:{
message:'狂神java'
}
});
</script>
</body>
</html>
<!--
双向动态绑定
-->
View Code
<!--
双向动态绑定
：v-model绑定变量qin，变量qin绑定value的属性值，前端选择哪个会确定value属性值，从而确定qin变量值
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
性别：
<input type="radio" name="sex" value="男" v-model="qin">男
<input type="radio" name="sex" value="女" v-model="qin">女
<p>
选中了哪个：{{qin}}
</p>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<script>
var vm=new Vue({
el:"#app",
data:{
qin:""
}
});
</script>
</body>
</html>
View Code
<!--
下拉框在动态绑定的应用
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
下拉框：
<select v-model="selected">
<option value="" disabled>--请选择-- </option>
<option>A</option>
<option>B</option>
<option>C</option>
</select>
<span>value:{{selected}}</span>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<script>
var vm=new Vue({
el:"#app",
data:{
selected:''
}
});
</script>
</body>
</html>
View Code
总结：通过v-model实现动态绑定
标签：el,Vue,新建,绑定,vm,语法,new,message From： https://www.cnblogs.com/MyBlogs-joyiyii/p/17363587.html