优化主子表单删方法

ruoyi-admin/src/main/resources/templates/demo/table/subdata.html

@@ -171,7 +171,8 @@
                     title: '操作',
                     align: 'center',
                     formatter: function(value, row, index) {
-                        return '<a class="btn btn-danger btn-xs" href="javascript:void(0)" onclick="sub.delRowByIndex(\'' + $.table.serialNumber(index) + '\', \'' + row.index + '\')"><i class="fa fa-remove"></i>删除</a>';
+                    	var value = $.common.isNotEmpty(row.index) ? row.index : $.table.serialNumber(index);
+                        return '<a class="btn btn-danger btn-xs" href="javascript:void(0)" onclick="sub.delRowByIndex(\'' + value + '\')"><i class="fa fa-remove"></i>删除</a>';
                     }
                 }]
 		    };