前端如何实现进度条

将进度条的宽度动态控制，通过css的transition动画来控制

<template>
  <div class="container">
    <div class="base-progress">
     <div class="inner" :style="{ width: w + '%' }">
      <div class="text">
        <span>{{ w }}</span>
        <span>%</span>
      </div>
    </div>
  </div>
  </div>
  </template>
  
  <script>
  import floatBtn from '@/components/floatBtn.vue'
  export default {
    components:{
      floatBtn
    },
    name: 'houselist-page',
    data () {
      return {
        w:20,
        img: require("@/assets/nav1.png")
      }
    },
    methods: {
    
    }
  }
  </script>
  <style>
  .container{
    width:100%;
    height:100vh;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .base-progress {
  height: 26px;
  width: 260px;
  border-radius: 15px;
  background-color: #e6e4e4;
  border: 2px solid #999;
  box-sizing: border-box;
}
.inner {
  width: 20px;
  height: 100%;
  border-radius: 12px;
  text-align: right;
  position: relative;
  background-color: #409eff;
  background-size: 20px 20px;
  box-sizing: border-box;
  transition: all 1s;
}
.inner .text{
  position: absolute;
  right: -10px;
  bottom: 0px;
}
  </style>