Vue动手实践p110和p107小试牛刀

news2024/11/6 9:36:59

一、小试牛刀

真的很不好意思诸位，最近事情有点多，更新进度缓慢了，这次就简单的再复习一下vue组件的内容，大家可以自行研究一下，我就不深入解析了。

<body>
<div id="app">
    <button @click="Cmop">切换组件</button>
    <p></p>
    <component :is="current" :name="name[current]" :color="color[current]" @change="change">
        <template slot="content">
            {{name[current]}}
        </template>
    </component>
</div>
<script src="https://cdn.bootcdn.net/ajax/libs/vue/2.7.0/vue.js"></script>
<script>
    Vue.component('my-component-one',{
        template:`
        <div>
          <div style="line-height: 2.6;" :style="{background: color}">
          <slot name="content"></slot>
        <button @click="$emit('change',name)">回传事件</button>
            </div>
        </div>
        `,
        props:{
            name:String,
            color:String
        }
    });
    Vue.component('my-component-two',{
        template:`
        <div>
        <div style="line-height: 2.4;" :style="{background: color}">
        <slot name="content"></slot>
        <button @click="$emit('change',name)">回传事件</button>
        </div>
        </div>
        `,
        props:{
            name:String,
            color:String
        }
    });


    new Vue({
        el:'#app',
        data: {
            current: 'my-component-one',
            name: {
                'my-component-one': '我是组件一',
                'my-component-two': '我是组件二'
            },
            color: {
                'my-component-one': 'yellow',
                'my-component-two': 'red'
            },
        },
        methods: {
            change(value) {
                alert(value)
            },
            Cmop() {
                if (this.current === 'my-component-one') {
                    this.current = 'my-component-two'
                } else {
                    this.current = 'my-component-one'
                }
            }
        }

    })
</script>
</body>

效果

在这里插入图片描述

二、动手实践

<body>
<div id="app">
    <!-- 组件使用者只需传递users数据即可 -->
    <my-stripe-list :items="users" odd-bgcolor="#D3DCE6" even-bgcolor="#E5E9F2" @change="change">
        <!-- props对象接收来自子组件slot的$index参数 -->
        <template slot="cont" slot-scope="props">
            <span>{{users[props.$index].id}}</span>
            <span>{{users[props.$index].name}}</span>
            <span>{{users[props.$index].age}}</span>
            <!-- 这里可以自定[编辑][删除]按钮的链接和样式 -->
            <a :href="'#edit/id='+users[props.$index].id">编辑</a>
            <a :href="'#del/id='+users[props.$index].id">删除</a>
        </template>
    </my-stripe-list>
</div>
<script>
    Vue.component('my-stripe-list', {
        /*slot的$index可以传递到父组件中*/
        template: `
                    <div>
                        <div v-for="(item, index) in items" style="line-height:2.2;" :style="index % 2 === 0 ? 'background:'+oddBgcolor : 'background:'+evenBgcolor">
                            <slot name="cont" :$index="index"></slot>
                            <button @click="$emit('change', item)">弹出名字和年龄</button>
                        </div>
                    </div>
                `,
        props: {
            items: Array,
            oddBgcolor: String,
            evenBgcolor: String
        }
    });
    new Vue({
        el: '#app',
        data: {
            users: [
                {id: 1, name: '张三', age: 20},
                {id: 2, name: '李四', age: 22},
                {id: 3, name: '王五', age: 27},
                {id: 4, name: '张龙', age: 27},
                {id: 5, name: '赵虎', age: 27}
            ]
        },
        methods: {
            change(value) {
                alert(`姓名：${value.name}, 年龄：${value.age}`)
            }
        }
    });
</script>
</body>