4. 事件绑定中的修饰符
（1）.prevent：调用preventDefault()。阻止链接打开URL
<a href="http://www.bilibili.com" rel="external nofollow" v-on:click.prevent>bilibili</a>
（2）.stop：调用stopPropagation()。阻止事件传播（阻止事件冒泡）
（3）键值修饰符：在监听键盘事件时，需要知道键的keyCode，记忆不方便，可以通过修饰符来记录键值
enter、tab、delete、esc、space、up、down、left、right
<script src="../js/vue.js"></script>
<body>
<div >
<button v-on:keyup.up="say">提交</button>
</div>
<script>
const vm = new Vue({
el:'#app',
data:{
msg:'键盘修饰符',
},
methods:{
say(){
alert(this.msg)
}
}
})
</script>
</body>
三、Class和Style的绑定
1. 对象语法：给v-bind:class传递一个对象，来动态地改变class属性值
<script src="../js/vue.js"></script>
<style>
div {
width: 100px;
height: 100px;
}
.class1 {
background-color: #ff0;
}
.class2 {
background-color: #f00;
}
</style>
<body>
<div v-bind:class="colorName" v-on:click="changeColor"></div>
<script>
const vm = new Vue({
el: '#app',
data:{
colorName:{
class1:true,
class2:false
}
},
methods: {
changeColor() {
this.colorName.class1 = !this.colorName.class1
this.colorName.class2 = !this.colorName.class2
}
}
})
</script>
</body>2. 数组语法：可以把一个数组传给v-bind:class，以应用一个class列表
<script src="../js/vue.js"></script>
<style>
div {
width: 100px;
height: 100px;
}
.class1 {
background-color: #ff0;
}
.class2 {
background-color: #f00;
}
</style>
<body>
<div v-bind:class="[c1,c2]" v-on:click="changeColor"></div>
<script>
const vm = new Vue({
el: '#app',
data: {
c1: 'class1',
c2: '',
},
methods: {
changeColor() {
this.c1 = (this.c1 == '' ? 'class1' : '')
this.c2 = (this.c2 == '' ? 'class2' : '')
}
}
})
</script>
</body>3. 内联样式绑定：直接绑定style（v-bind:style)
（1）对象表示法
<script src="../js/vue.js"></script>
<style>
div {
width: 100px;
height: 100px;
}
.class1 {
background-color: #ff0;
}
.class2 {
background-color: #f00;
}
</style>
<body>
<div v-bind:class="[c1,c2]" v-on:click="changeColor">
<div v-bind:>白桦林</div>
</div>
<script>
const vm = new Vue({
el: '#app',
data: {
c1: 'class1',
c2: '',
fontColor:'blue',
mySize:'18px'
},
methods: {
changeColor() {
this.c1 = (this.c1 == '' ? 'class1' : '')
this.c2 = (this.c2 == '' ? 'class2' : '')
}
}
})
</script>
</body>（2）数组表示法
<script src="../js/vue.js"></script>
<style>
div {
width: 100px;
height: 100px;
}
.class1 {
background-color: #ff0;
}
.class2 {
background-color: #f00;
}
</style>
<body>
<div v-bind:class="[c1,c2]" v-on:click="changeColor">
<div v-bind:>白桦林</div>
</div>
<script>
const vm = new Vue({
el: '#app',
data: {
c1: 'class1',
c2: '',
colorStyle:{color:'red'},
fontStyle:{fontSize:'32px'}
},
methods: {
changeColor() {
this.c1 = (this.c1 == '' ? 'class1' : '')
this.c2 = (this.c2 == '' ? 'class2' : '')
}
}
})
</script>
</body>原文地址：https://blog.csdn.net/m0_74343097/article/details/128563671