创建一个空文件夹，打开命令行安装

npm init -y         // 格式化

cnpm i vue-cli -g       // 全局安装

vue -V         // 查看版本

vue init webpack        //  选择 Y  n  n  n

cnpm i         // 安装

npm run dev    //  启动服务器

vue-cli 布局

下载完之后找到文件夹src

App.vue

<template>
  <div>
        <my-header></my-header>
        <my-content></my-content>
        <my-footer></my-footer>
  </div>

</template>

<script type="text/javascript">
    import MyHeader from "./components/myheader"     // 路径  导入
    import MyContent from "./components/mycontent"
    import MyFooter from "./components/myfooter"
    
    export default {   // 导出
            components:{
//              MyHeader:MyHeader,
//              MyContent:MyContent,
//              MyFooter:MyFooter  //原来写法
                    MyHeader,MyContent,MyFooter    //缩写
            }
    }
</script>

在src里的components文件夹里创建 myheader.vue / mycontent.vue / myfooter.vue / mynav.vue

myheader.vue

<template>
    <p>头部</p>
</template>

<script>
</script>

<style>
</style>

mycontent.vue

<template>
    <div>
        <p>内容</p>
        <ul>
            <li v-for="x in list1">{{x}}</li>
        </ul>
        <div>
            <tab titles="11,22,33" contents="aa,bb,cc"></tab>
            <tab titles="aa,bb,cc,dd" contents="11,22,33,44"></tab>
            <tab titles="Aa,Bb,Cc" contents="1-1,2-1,3-1"></tab>
        </div>
    </div>  
</template>

<script>
    import tab from "./mynav"
    
    export default{
        data(){
            return{
                list:["电脑","电视机","手机","洗衣机","电影票","衣服"],
                keys:"",
                list1:[]
            }           
        },
        components:{
            tab
        },
        methods:{
            find(){
                if(this.keys=="") return [];
                var temp=[];
                this.list.forEach(function(item){
                    if(item.includes(this.keys)){
                        temp.push(item);
                    }
                }.bind(this))
                this.list1=temp;
            }
        }
    }
</script>

<style scoped>  // scoped 样式只在当前文件有效
    ul{
        padding: 0;
        margin: 0;
        list-style: none;
    }
</style>

mynav.vue

<template>
        
    <div class="box">
        <ul>
            <li v-for="(x,index) in nav" :class="{'red':index==cur}" @click="click(index)">{{x}}</li>
        </ul>
        <div v-for="(x,index) in cont" :class="{'curdiv':index==cur}">{{x}}</div>
    </div>
    
</template>

<script>
    export default {
            props:["titles","contents"],
            computed:{
                nav(){
                    return this.titles.split(",")
                },
                cont(){
                    return this.contents.split(",")
                }
            },
            data(){
                return{
                    cur:0
                }
            },
            methods:{
                click(index){
                    this.cur=index;
                }
            }
        }

</script>

<style scoped>
    *{margin: 0;padding: 0;}
            #app{
                margin: 50px auto;
                width: 500px;
            }
            ul{
                list-style: none;
            }
            ul li{
                float: left;
                width: 60px;
                text-align: center;
                cursor: pointer;
                line-height: 40px;
            }
            .red{
                color: red;
            }
            .box div{
                display: none;
                text-align: center;
                font-size: 40px;
                line-height: 200px;
                border: 1px solid #333;
                width: 500px;
            }
            .box .curdiv{
                clear: both;
                display: block;                             
            }
</style>

myfooter.vue

<template>
    <p>页脚</p>
</template>

<script>
</script>

<style>
</style>