Vue入门---属性、style和class绑定方法
2018-10-22 本文已影响5人
唐人不自醉
一 、用对象的方法绑定class
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class与style绑定</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
<style>
.class1{
color: #f00;
}
.class2{
background-color: #00f;
}
</style>
</head>
<body>
<div class="test">
<div class="otherClass" :class="{'class1':name1,'class2':name2}">我是娃哈哈</div> <!--方法一:用对象的方式实现 name1和name2是boolean型,为true时给元素加上对应的class，为false不添加-->
</div>
<script type="text/javascript">
var myVue = new Vue({
el:".test",
data: {
name1: true,
name2: false,
}
})
</script>
</body>
</html>
实现效果:
关于使用对象绑定class,还可以用另外一种写法:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class与style绑定</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
<style>
.class1{
color: #f00;
}
.class2{
background-color: #00f;
}
</style>
</head>
<body>
<div class="test">
<div class="otherClass" :class="classObj">我是娃哈哈</div> <!--方法一:用对象的方式实现 ,true给元素加上对应的class，为false不添加-->
</div>
<script type="text/javascript">
var myVue = new Vue({
el:".test",
data: {
classObj: {
class1: true,
class2: false,
}
}
})
</script>
</body>
</html>
image
二 、用数组的方法绑定class
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class与style绑定</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
<style>
.class1{
color: #f00;
}
.class2{
background-color: #ff0;
}
</style>
</head>
<body>
<div class="test">
<div class="otherClass" :class="[name1,name2]">我是娃哈哈</div> <!--方法二:用数组的方式实现 -->
</div>
<script type="text/javascript">
var myVue = new Vue({
el:".test",
data: {
name1: 'class1',
name2: 'class2',
}
})
</script>
</body>
</html>
实现效果:
其实在数组中还可以用判断是否显示这个类名,举个例子:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class与style绑定</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
<style>
.class1{
color: #f00;
}
.class2{
background-color: #ff0;
}
</style>
</head>
<body>
<div class="test">
<div class="otherClass" :class="[name1, isShow? name2 : '']">我是娃哈哈</div> <!--方法一:用数组的方式实现 ，采用三元表达式,条件为true时显示-->
</div>
<script type="text/javascript">
var myVue = new Vue({
el:".test",
data: {
name1: 'class1',
name2: 'class2',
isShow: false,
}
})
</script>
</body>
</html>
实现效果是:
image
三、 用数组和对象混合的方法绑定class
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class与style绑定</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
<style>
.class1{
color: #f00;
}
.class2{
background-color: #ff0;
}
</style>
</head>
<body>
<div class="test">
<div class="otherClass" :class="[name1, {class2 :isShow}]">我是娃哈哈</div> <!--方法三:用数组对象组合的方式实现，条件为true时显示-->
</div>
<script type="text/javascript">
var myVue = new Vue({
el:".test",
data: {
name1: 'class1',
class2: 'name2',
isShow: true,
}
})
</script>
</body>
</html>
实现的效果:
四、 用对象的方式实现style绑定
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class与style绑定</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
<style>
.class1{
color: #f00;
}
.class2{
background-color: #ff0;
}
</style>
</head>
<body>
<div class="test">
<div class="otherClass" :style="{color: color, width: width + 'px'}">我是娃哈哈</div> <!--方法三:用对象的方式实现-->
</div>
<script type="text/javascript">
var myVue = new Vue({
el:".test",
data: {
color: 'red',
width: 100,
}
})
</script>
</body>
</html>
实现效果如下:
其实也可以写为第二种方式:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class与style绑定</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="test">
<div class="otherClass" :style= "styleObj">我是娃哈哈</div> <!--方法三:用对象的方式实现-->
</div>
<script type="text/javascript">
var myVue = new Vue({
el:".test",
data: {
styleObj: {
color: 'red',
width: '200px',
}
}
})
</script>
</body>
</html>
实现结果是:
五、 用数组和对象混合的方式实现style绑定
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>class与style绑定</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<script src="../../node_modules/vue/dist/vue.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="test">
<div class="otherClass" :style= "[styleObj1,styleObj2]">我是娃哈哈</div> <!--方法三:用对象的方式实现-->
</div>
<script type="text/javascript">
var myVue = new Vue({
el:".test",
data: {
styleObj1: {
color: 'red',
width: '200px',
},
styleObj2: {
backgroundColor: '#ff0'
}
}
})
</script>
</body>
</html>
实现效果：
六、绑定属性
v-bind:src=""
width/height/title....
简写：:**src="" ** 推荐
<img src="{{url}}" alt=""> 效果能出来，但是会报一个404错误
<img v-bind:src="url" alt=""> 效果可以出来，不会发404请求 推荐使用
以上就是vue中绑定style和class还有属性的方法，希望对大家有帮助！
