2022-10-15 10:05:34 +08:00
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<!--
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1、当方法需要参数而不传参那么默认就会传递event对象
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2、当方法需要两个以上参数，并且传递event对象，那么就需要手动传递event对象：$event
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3、传递什么参数就打印什么参数
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-->
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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<style>
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*{
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margin: 0;
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padding: 0;
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}
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.change{
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color: blue;
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}
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</style>
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</head>
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<body>
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<div id="app">
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<button @click="clickon(1)">按钮1</button>
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<button @click="clickon(1,$event)" class="">按钮2</button>
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<button @click="clickon3">按钮3</button>
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</div>
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</body>
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2022-11-19 11:19:25 +08:00
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<script src="../00-tools/JavaScript/vue.js"></script>
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2022-10-15 10:05:34 +08:00
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<script>
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const vue=new Vue({
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el:"#app",
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methods: {
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clickon(val,event){
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if(event.target.className=="" ){
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event.target.className="change"
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}
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},
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clickon3(val){
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console.log(val);
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}
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},
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})
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</script>
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</html>
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