learn_vue/event.html at main · shawnfinelee/learn_vue · GitHub

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<!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>
    <div id="app">
        <todo-list></todo-list>
    </div>
</head>

<body>
    <!-- 开发环境版本，包含了有帮助的命令行警告 -->
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <script>
        Vue.component('todo-item', {
            props: {
                title: String,
                del: {
                    type: Boolean,
                    default: false
                }
            },
            template: `
        <li>
            <span v-if="!del">{{title}}</span>
            <span v-else style="text-decoration:line-through">{{title}}</span>
            <button v-show="!del" @click="handlerClick">删除</button>
        </li>
        `,
            data: function () {
                return {}
            },
            methods: {
                handlerClick() {
                    console.log("点击了删除按钮");
                    this.$emit('delete', this.title);
                }
            }
        });

        Vue.component('todo-list', {
            template: `
            <ul>
                <todo-item @delete="handleDelete" v-for="item in list" :title="item.title" :del="item.del"></todo-item>
            </ul>
            `,
            data: function () {
                return {
                    list: [
                        {
                            title: 'php',
                            del: true,
                        },
                        {
                            title: 'vue',
                            del: false,
                        }
                    ]
                }
            },
            methods: {
                handleDelete(title) {
                    console.log("delete", title)
                }
            }
        });

        var vm = new Vue({
            el: '#app',
            data: {

            }
        });
    </script>
</body>

</html>