el-table修改样式

    ::v-deep.el-table {
      background-color: unset;
      &::before {
        //去掉最下面的那一条线
        height: 0px;
      }
    }
    ::v-deep.el-table td.el-table__cell,
        .el-table th.el-table__cell.is-leaf {
          border-bottom: none;
        }