Vue单文件学习项目综合案例Demo，黑马vue教程

作者：很楠不爱3 | 2024-02-23 10:34:45

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文章目录

前言
一、小黑记事本
二、购物车
三、小黑记账清单

前言

bilibili视频地址

一、小黑记事本

效果图
主代码

<!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"/>
    <link rel="stylesheet" href="./css/index.css"/>
    <title>记事本</title>
</head>
<body>

<!-- 主体区域 -->
<section id="app">
    <!-- 输入框 -->
    <header class="header">
        <h1>小黑记事本</h1>
        <input placeholder="请输入任务" v-model="inputTask" class="new-todo"/>
        <button class="add" @click="addTask()">添加任务</button>
    </header>
    <!-- 列表区域 -->
    <section class="main">
        <ul class="todo-list" v-for="(item,index) in list" :key="item.id">
            <li class="todo">
                <div class="view">
                    <span class="index">{{ index + 1 }}</span> <label>{{ item.name }}</label>
                    <button class="destroy" @click="delTask(item.id)"></button>
                </div>
            </li>
        </ul>
    </section>
    <!-- 统计和清空 -->
    <footer class="footer" v-show="list.length > 0">
        <!-- 统计 -->
        <span class="todo-count">合 计:<strong> {{ list.length }} </strong></span>
        <!-- 清空 -->
        <button class="clear-completed" @click="clearAll()">
            清空任务
        </button>
    </footer>
</section>

<!-- 底部 -->
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>

    const app = new Vue({
        el: '#app',
        data: {
            list: [
                {id: 2, name: "我要吃饭"},
                {id: 1, name: "我要睡觉"}
            ],
            inputTask: ""
        },
        methods: {
            addTask() {
                let tempId;
                //生成一个不重复的id
                if (this.list[0] != null) {
                    tempId = this.list[0].id + 1
                } else {
                    tempId = 1
                }
                this.list.unshift({
                    id: tempId,
                    name: this.inputTask
                });
                this.inputTask = ""
            },
            delTask(id) {
                this.list = this.list.filter(item => item.id != id);
            },
            clearAll() {
                this.list = [];
            }
        }
    })

</script>
</body>
</html>

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二、购物车

效果图
主代码

<!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" />
    <link rel="stylesheet" href="./css/inputnumber.css" />
    <link rel="stylesheet" href="./css/index.css" />
    <title>购物车</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  </head>
  <body>
    <div class="app-container" id="app">
      <!-- 顶部banner -->
      <div class="banner-box"><img src="img/fruit.jpg" alt="" /></div>
      <!-- 面包屑 -->
      <div class="breadcrumb">
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