vue2.5+基础

<!DOCTYPE html>
<html>
<head>
    <title>vue</title>
    <!-- <script src="./vue.js"></script> -->
    <script src="http://cdn.staticfile.org/vue/2.6.10/vue.common.dev.js"></script>
</head>
<body>

    <div id="root">
        {{msg}} {{num}}
        <div v-html="wocao"></div>
        <div v-text="wocao"></div>
        <div v-on:click="handleClick">{{content}}</div>
        <div v-bind:title="title">title</div>
        <input type="text" :value="neirong"> <!-- v-bind:可简写为: -->
        <input type="text" v-model:value="neirong">
        <div>{{neirong}}</div>
        <br>
        姓：<input v-model="firstName">
        名：<input v-model="lastName">
        <div>{{firstName}} {{lastName}}</div>
        <div>{{fullName}}</div>
        <div>{{count}}</div>
        <!-- v-show和v-if：前者是隐藏/显示，后者是销毁/创建，显然v-show更省资源(浏览器资源也是资源！) -->
        <div v-if="show">show-hidden</div>
        <div v-show="show">show-hidden</div>
        <button v-on:click="toggleFunc">toggle</button>
        <button @click="toggleFunc">toggle</button>
        <!-- 最好有个:key来标记，以增加性能(:key不能重复) -->
        <ul>
            <li v-for="(item, index) of list1" :key="index">{{item}}</li>
        </ul>

        <input v-model="inputValue"/>
        <button @click="addTextFunc">提交</button>
        <ul>
            <li v-for="(item, index) of list2" :key="index">{{item}}</li>
        </ul>

        <div v-html="doChange"></div>
    </div>

    <script>
        var app = new Vue({
            el: "#root",
            data: {
                msg: "hello world",
                num: "1",
                wocao: "<b>wo cao a</b>",
                content: "content: hello",
                title: "啊哈哈title",
                neirong: "这里是内容",
                firstName: "",
                lastName: "",
                count: 0,
                show: true,
                list1: [1, 2, 3],
                list2: [],
                doChange: '<h1>哈哈哈</h1>'
            },
            computed: {
                fullName: function() {
                    return this.firstName + " " + this.lastName
                }
            },
            watch: {
                fullName: function() {
                    this.count++
                }
            },
            methods: {
                handleClick: function() {
                    alert("转换为大写");
                    this.content = "CONTENT: HELLO"
                },
                toggleFunc: function() {
                    /*if (this.show == false) {
                        this.show = true
                    }else {
                        this.show = false
                    }*/
                    this.show = !this.show
                },
                addTextFunc: function() {
                    this.list2.push(this.inputValue)
                    this.inputValue = ""
                }
            }
        });
        setTimeout(function() {
            app.$data.doChange = "<span style='color:red'><h1>嘿嘿嘿</h1></span>"
        }, 1000)
    </script>

</body>
</html>
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