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geektime-vue-1
/
index.html

<html>

<head>
    <style>
        .item {
            color: red;
        }
    </style>
</head>

<body>
    <div id="app">
        {{msg}}
        <div>
            <input type="text" v-model="info">
            <button @click="handleClick">添加</button>
        </div>
        <ul>
            <todo-item v-for="item in list" :item="item"></todo-item>
        </ul>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
    <script>
        Vue.component('todo-item', {
            props: ['item'],
            template: '<li class="item">{{item}}</li>'
        })
        new Vue({
            el: '#app',
            data() {
                return {
                    msg: 'hello geektime',
                    info: '',
                    list: [],
                }
            },
            methods: {
                handleClick() {
                    this.list.push(this.info)
                    this.info = ''
                }
            }
        })
    </script>
</body>

</html>