element表格去掉hover

 <el-table
      :data="tableList"
      :stripe="true"
      v-loading="loading"
      :cell-style="{background:'#fff'}"
      :span-method="objectSpanMethod"
      :row-class-name="rowClassName"
      @cell-mouse-enter="handleMouseEnter"
      @cell-mouse-leave="handleMouseLeave"
      border
    />

只需要 

:cell-style="{background:'#fff'}"