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vue元件簡單實現登入退出切換

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title></title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
    <script src="https://unpkg.com/axios/dist/axios.min.js"></script>
</head>

<body>
    <div id='app'>
        <forth-login></forth-login>
        <forth-login></forth-login>
        <forth-login></forth-login>
        <forth-login></forth-login>
    </div>
    <template id="forth">
        <h1 v-if
='isLogin'> <button @click='isLogin = !isLogin'>登入</button> 登入/註冊 </h1> <h1 v-else> <button @click='isLogin = !isLogin'>退出</button> 個人資訊 </h1> </template> <script> //
第一個引數為元件名稱 Vue.component('forth-login', { template: '#forth', data() { return { isLogin: true } } }) const vm = new Vue({ el: '#app', data: { isLogin:
true }, methods: { }, }) </script> </body> </html>