[JavaScript知识库]品牌列表案例(vue)

vue 小案例

品牌列表案例

bootstrap渲染

<div id="app">
        <!-- 卡片区域 -->
        <div class="card">
            <div class="card-header">
                添加品牌
            </div>
            <div class="card-body">
                <!-- 添加品牌的表单区域 -->
                <form @submit.prevent="add">
                    <div class="form-row align-items-center">
                        <div class="col-auto">
                            <div class="input-group mb-2">
                                <div class="input-group-prepend">
                                    <div class="input-group-text">品牌名称</div>
                                </div>
                                <input type="text" class="form-control" placeholder="请输入品牌名称" v-model.trim="brand">
                            </div>
                        </div>
                        <div class="col-auto">
                            <button type="submit" class="btn btn-primary mb-2">添加</button>
                        </div>
                    </div>
                </form>
            </div>
        </div>

        <!-- 表格区域 -->
        <table class="table table-bordered table-hover table-striped">
            <thead>
                <tr>
                    <th scope="col">#</th>
                    <th scope="col">品牌名称</th>
                    <th scope="col">状态</th>
                    <th scope="col">创建时间</th>
                    <th scope="col">操作</th>
                </tr>
            </thead>
            <tbody>
                <tr v-for="item in list" :key="item.id">
                    <td>{{item.id}}</td>
                    <td>{{item.uname}}</td>
                    <td>
                        <div class="custom-control custom-switch">
                            <!-- : 动态绑定生成 -->
                            <input type="checkbox" class="custom-control-input" :id="'ch'+item.id" v-model="item.status">
                            <label class="custom-control-label" :for="'ch'+item.id" v-if="item.status==true">已启用</label>
                            <label class="custom-control-label" :for="'ch'+item.id" v-else>已禁用</label>
                        </div>
                    </td>
                    <td>{{item.time}}</td>
                    <td>
                        <a href="javascript:;" @click="remove(item.id)">删除</a>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>

vue部分

<script src="./lib/vue-2.6.12.js"></script>
    <script>
        const vm = new Vue({
            el: '#app',
            data: {
                brand: "",
                nextid: 4,
                list: [{
                    id: 1,
                    uname: "宝马",
                    status: true,
                    time: new Date()
                }, {
                    id: 2,
                    uname: "奔驰",
                    status: false,
                    time: new Date()
                }, {
                    id: 3,
                    uname: "奥迪",
                    status: true,
                    time: new Date()
                }]
            },
            methods: {
                // 删除
                remove(id) {
                    // 循环项的id不等于要删的id时，会过滤出来 放到新数组里，若相等 就被删掉了
                    this.list = this.list.filter(item => item.id !== id)
                },
                // 添加
                add() {
                    // 如果判断brand 的值为空字符串时，则return 出去
                    // if(this.brand=="") return alert(""); 只有一行代码时可省略{}
                    if (this.brand == '') {
                        alert("请输入内容")
                        return
                    }
                    // 若没有return 出去 则执行添加功能
                    const obj = { //要添加的对象
                        id: this.nextid,
                        uname: this.brand,
                        status: true,
                        time: new Date()
                    }
                    this.list.push(obj)
                    this.brand = ""
                    this.nextid++
                }
            }
        })
    </script>

css部分

body {
  padding: 15px;
  /* 禁止文字选中 */
  user-select: none;
}