<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="../JS/vue.js"></script>
<style>
.box1 {
padding: 5px;
background-color: skyblue;
}
.box2 {
padding: 5px;
background-color: tomato;
}
.list {
width: 200px;
height: 200px;
background-color: peru;
overflow: auto;
}
li {
height: 100px;
}
</style>
</head>
<body>
<div id="root">
<h2>欢迎来到{{name}}来学习</h2>
<!-- 阻止默认事件(常用) -->
<a href="http://www.atguigu.com" @click.prevent="showInfo">点我提示信息</a>
<br><br>
<!-- 阻止事件冒泡(常用) -->
<div @click="showInfo">
<button @click.stop="showInfo">点我提示信息</button>
</div>
<br><br>
<!-- 事件只触发一次(常用) -->
<button @click.once="showInfo">点我提示信息</button>
<br><br>
<!-- 使用事件的捕获模式 -->
<div class="box1" @click.capture="showMsg(1)">
div1
<div class="box2" @click="showMsg(2)">
div2
</div>
</div>
<br><br>
<!-- 是有event.target是当前操作的元素时才触发事件 -->
<div @click.self="showInfo">
<button @click="showInfo">点我提示信息</button>
</div>
<br><br>
<!-- 事件的默认行为立即执行,无需等待事件回调执行完毕 -->
<ul class="list" @wheel.passive="demo">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
</div>
<script>
new Vue({
el: "#root",
data() {
return {
name: "张三"
}
},
methods: {
showInfo(e) {
alert("同学你好")
// console.log(e.target)
},
showMsg(msg) {
console.log(msg)
},
demo() {
// console.log("@")
for (let i = 0; i < 1000; i++) {
console.log("#")
}
console.log("累坏了");
}
}
})
</script>
</body>
</html>
Vue中的事件修饰符
最新推荐文章于 2024-10-09 10:39:54 发布