表单失去焦点校验数据后，有问题的焦点激活

 <el-input
                  v-model="scope.row.setMaxScore"
                  :ref="`inputRefs${scope.$index}`"
                  size="small"
                  @blur="changeMax
                (scope.$index,scope.row)"

                ></el-input>

    //鼠标离开
    changeMax(index, row) {
      this.rowIndex = index;
     this.maxScore = row.setMaxScore;
      this.minScore = row.setMinScore;
      if(this.minScore!=''&&this.maxScore==''){
        return
      }
      else{
        if(Number(this.minScore) >=Number(this.maxScore)){
      this.$message.error('第'+(this.rowIndex+1)+'行最大值应该大于最小值')
      this.$refs[`inputRefs${index}`].focus()

//有的时候要加[0]

this.$refs[`stepInputRefs${mindex}a${index}`][0].focus();

      }
      }

    },

export default {

  name: "SetGrade",

  components: {},

  

  directives: {

    focus: {

        // 指令的定义

        inserted: function(el){

            el.focus()

        }

    }

  },

}