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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edfe">
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<script src="https://unpkg.com/vue@3.3.4/dist/vue.global.js"></script>
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<title>v-on</title>
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</head>
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<body>
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<div id="app">
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<input type="button" value="点击执行" v-on:click="click_action"><br>
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<input type="button" value="双击执行" @dblclick="double_action"><br>
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<input type="text" :placeholder="msg" v-model="msg" @keyup.enter="alert(msg)">
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</div>
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<script type="text/javascript">
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const App = {
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data() {
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return {
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msg: "请输入后回车提示信息",
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count: 0,
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}
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},
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methods: {
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click_action: function () {
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alert('执行方法成功')
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},
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double_action: function () {
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alert("当前数值为：" + this.count+', 再次双击将+1')
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this.count++
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},
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alert: function (msg) {
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console.log(this.msg)
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alert(msg)
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}
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}
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}
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Vue.createApp(App).mount("#app")
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</script>
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</body>
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</html>
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