方法一:

(1) html中:

 <div class="videoMa" ref="videoMa" style="width:100%;height:100%;">
 <div id="playWnd" class="playWnd"  :style="{width:videoBox.width+ 'px',height:videoBox.height+ 'px'}"></div>
 </div>

(2) data中:

 videoBox:{
       width:800,
       height:500,
     }

(3)mounted中:

  mounted() {
      this.videoBox.width=this.$refs.videoMa.offsetWidth;
      this.videoBox.height=this.$refs.videoMa.offsetHeight;
 }

 

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