• 安装组件

# 进入项目目录
$ cd myweb
$ npm install --save --save-exact axios vue-axios

npm WARN ajv-keywords@3.4.1 requires a peer of ajv@^6.9.1 but none is installed. You must install peer dependencies yourself.
npm WARN bootstrap@4.4.1 requires a peer of jquery@1.9.1 - 3 but none is installed. You must install peer dependencies yourself.
npm WARN bootstrap@4.4.1 requires a peer of popper.js@^1.16.0 but none is installed. You must install peer dependencies yourself.

• vue-axios@2.1.5
• axios@0.19.2
  added 4 packages from 8 contributors in 11.461s

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• 编辑main.js引入

import axios from 'axios'
import VueAxios from 'vue-axios'

Vue.use(VueAxios,axios)

• js代码

<template>
  <div class="hello">
    <pre>{{content}}</pre>
  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  data () {
    return {
      content:""
    }
  },
  mounted() {
    this.axios.post("http://api.komavideo.com/new/list").then(body => {
      this.content = body.data;
    })
  }
}
</script>

[Vue3.0]安装Ajax库 axios