<el-table @cell-click="rowClick" :row-class-name="rowClass">

/**
 * 表格行的class赋值
 */
rowClass({row, rowIndex}) {
    row.index = rowIndex;
    if(this.cargoKindDialogClickRow === rowIndex) {
        return "tableActive";
    }
}

/**
 * 模态框中分类的点击事件
 */
rowClick(row) {
    this.cargoKindDialogClickRow = row.index;
}