filters:{
    getFileName (data) {
      if(data == undefined || data == null || data == '') {
        return ''
      }else{
       return data.substring(0,data.indexOf('.'))
      }
    }
  },

<div class="gradingconditions_div">
     <div class="div_left">测试程序</div>
     <div class="div_right"> {{ testFileName | getFileName }} </div>
</div>