StudyPython/Resource/vue7.html at dev · loaderlin/StudyPython · GitHub

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>Vue 示例</title>
</head>
<body>
    <div id="app">
        <p>总数 {{  total }}</p>
        <!-- <my-component
            @increase="handleGetTotal"
            @reduce="handleGetTotal"
        >
        </my-component> -->
        <my-component v-model="total">
        </my-component>
        <button @click="handleReduce"> -1 </button>
        <!-- <my-component
            @input="handleGetTotal"
        >
        </my-component> -->

        <!-- <child-component>
            <p>替代分发内容</p>
            <p>替代分发内容</p>
            <div slot="footer">底部信息</div>
        </child-component> -->

        <!-- <child-component>
            <template scope="props">
                <p>来自父组件的内容</p>
                <p>{{ props.msg }}</p>
            </template>
        </child-component> -->

        <child-component :count="1">

        </child-component>

        <child-component inline-template>
            <div>
                <h2>在父组件中定义子组件的模板</h2>
                <p>{{ message }}</p>
                <p>{{ msg }}</p>
            </div>
        </child-component>

        <component :is="currentView"></component>
        <button @click="handleChangeView('A')">切换到A</button>
        <button @click="handleChangeView('B')">切换到B</button>
        <button @click="handleChangeView('C')">切换到C</button>
    </div>

    <script src="https://unpkg.com/vue/dist/vue.min.js" ></script>
    <script>
        var data = {
            counter: 0
        };
        Vue.component('my-component', {
            props: ['value'],
            // template: '<div> <button @click="handleIncrease"> +1 </button> <button @click="handleReduce"> -1 </button></div>',
            template: '<input :value="value" @input="updateValue"/>',
            data: function(){
                return data
                // return {
                //     counter: 0
                // }
            },
            methods: {
                handleIncrease: function(){
                    this.counter++;
                    // this.$emit('increase', this.counter);
                    this.$emit('input', this.counter);
                },
                handleReduce: function() {
                    this.counter--;
                    // this.$emit('reduce', this.counter);
                    this.$emit('input', this.counter);
                },
                updateValue: function() {
                    this.$emit('input', event.target.value);
                }
            }
        });

        Vue.component('child-component', {
            // template: '<div> <slot><p> 显示默认内容 </p></slot> <slot name="footer">默认底部信息</slot><slot msg="来自子组件的内容"/></div> ',
            // mounted: function (){
            //     var footer = this.$slots.footer;
            //     console.log(footer);
            //     console.log(footer[0].elm.innerHTML);
            // },

            // name: 'child-component',
            // props: {
            //     count: {
            //         type: Number,
            //         default: 1
            //     }
            // },
            // template: '<div class="child"> <child-component :count="count + 1" v-if=" count < 3"></child-component> </div>'

            data: function (){
                return {
                    msg: '在子组件声明的数据'
                }
            }
        });

        var Home = {
            template: '<p> Welcome home! </p>'
        };
        var app = new Vue({
            el:　'#app',
            data:{
                total: 0,
                books: [
                    {name : 'Vue 实战', author: 'rocky'},
                    {name : 'D JavaScript 实战', author: 'rocky'},
                    {name : 'C JavaScript 实战1231', author: 'rocky'},
                    {name : 'B JavaScript 实战12', author: 'rocky'},
                    {name : 'A JavaScript 实战12', author: 'rocky'},
                ],
                message: '在父组件声明的数据',
                currentView: 'comA',
                // currentView: Home
            },
            components: {
                comA: { template: '<div>组件A</div>'},
                comB: { template: '<div>组件B</div>'},
                comC: { template: '<div>组件C</div>'}
            },
            methods: {
                // handleGetTotal: function (total){
                //     this.total = total;
                // }
                handleGetTotal: function (total){
                    this.total = total;
                },
                handleReduce: function() {
                    this.total--;
                },
                handleChangeView: function (component){
                    this.currentView = 'com' + component;
                }
            },
            computed: {
            },
            created: function () {
            },
            mounted: function () {
            },
            beforeDestory: function () {
            },
        });
    </script>
</body>
</html>