一种是通过vue-router切换页面，一种是通过v-if来切换页面。

1.vue-router的方法：

(1).安装Vue-Cli

npm install -g @vue/cli

(2).创建一个项目

vue create hello-world

(3).通过空格勾选上router、store、scss

系统会自动生成router.js文件，store.js文件

(4).新建几个vue文件

路由跳转有两种模式， 一种是历史模式：mode: 'history'，一种是hash模式：mode: 'hash'

首页

path: '/'

import Vue from 'vue'
import Router from 'vue-router'
Vue.use(Router)

export default new Router({
  mode: 'history',
  base: process.env.BASE_URL,
  routes: [
    {
      path: '/',
      name: 'home',
      component: () => import(/* webpackChunkName: "about" */ './components/home.vue')
    }, 
    {
      path: '/cloudservices',
      name: 'cloudservices',
      component: () => import(/* webpackChunkName: "about" */ './components/cloudServices.vue')
    },
    {
      path: '/product',
      name: 'product',
      component: () => import(/* webpackChunkName: "about" */ './components/product.vue')
    }
         
  ]
})

2.通过v-if来切换页面

<template>
 <div class="wrapper">
    <div class="wrapper_content">
       <div class="tab_title">
          <ul>
            <li @click="tab=0" :class="{tab_active:tab==0}">
             tab1
            </li>
            <li @click="tab=1" :class="{tab_active:tab==1}">
             tab2
            </li>
            <li @click="tab=2" :class="{tab_active:tab==2}">
             tab3
            </li>
            <li @click="tab=3" :class="{tab_active:tab==3}">
             tab4
            </li>
            <li @click="tab=4" :class="{tab_active:tab==4}">
             tab5
            </li>
            <li @click="tab=5" :class="{tab_active:tab==5}">
             tab6
            </li>
          </ul>
        </div>
        <div class="content">
          <div class="tab_content" v-if="tab==0">
            内容一
          </div>
          <div class="tab_content" v-else-if="tab==1">
            内容二
          </div>
          <div class="tab_content" v-else-if="tab==2">
            内容三
          </div>
          <div class="tab_content" v-else-if="tab==3">
            内容四
          </div>
          <div class="tab_content" v-else-if="tab==4">
            内容五
          </div>
          <div class="tab_content" v-else-if="tab==5">
            内容六
          </div>
        </div>
      </div>
    </div>
</template>
<script>
export default {
  data() {
    return {
      tab:0 //默认选中第一个tab
    };
  }
};
</script>
<style scoped>
.wrapper {
  width: 100%;
  height: 600px;
  background-color: white;
  background-position: center;
  display: flex;
  justify-content: center;
}
.wrapper_content{
 width: 1236px;
 height: 100%;
 display: flex;
 justify-content: flex-start;
}
.tab_title{
  width: 261px;
  height: 100%;
  background-color: sandybrown;
}
.tab_title>ul{
  margin: 0;
  padding: 0;
  list-style: none;
  width: 100%;
  height: 542px;
  margin-top: 28px;
  display: flex;
  flex-direction: column;
}
.tab_title>ul>li{
  flex-grow: 1;
  width: 100%;
  text-align: center;
  height: 80px;
  line-height: 80px;
  display: flex;
  border: 1px solid #ccc;
  justify-content: center;
}
.tab_title>ul>li:hover{
  cursor: pointer;
}
.tab_title .tab_active{
  cursor: pointer;
  background: linear-gradient(to right top, #00a0ff, #0b62ff);
  color: white;
  border: 0;
}
.content{
  width: 976px;
  height: 100%;
  border: 1px solid darkcyan;
}
.tab_content{
  width: 100%;
  height: 100%;
}

</style>

效果图：