需要将使用columnGroupDefs进行列分组的代码中，将sort属性设置为null，然后在使用pivotMode和pivotColumnGroupDefs时，使用自定义的comparator函数。

以下是示例代码：

// 列分组定义 let columnGroupDefs = [ // 普通列 { headerName: "Athlete Details", children: [ {headerName: "Athlete", field: "athlete", minWidth: 200}, {headerName: "Age", field: "age", minWidth: 100, comparator: ageComparator}, {headerName: "Country", field: "country", minWidth: 150}, ] }, // 分组列 { headerName: "Medal Counts", groupId: "medalGroup", children: [ {headerName: "Gold", field: "gold", minWidth: 100, sort: null}, {headerName: "Silver", field: "silver", minWidth: 100, sort: null}, {headerName: "Bronze", field: "bronze", minWidth: 100, sort: null}, ] } ];

// 自定义排序比较器 function ageComparator(valueA, valueB, nodeA, nodeB, isInverted) { if (valueA == null && valueB == null) { return 0; } if (valueA == null) { return -1; } if (valueB == null) { return 1; }

return valueA - valueB;

}

// 使用pivotMode和pivotColumnGroupDefs gridOptions.pivotMode = true; gridOptions.pivotColumnGroupDefs = [ { headerName: "Country", field: "country", cellRenderer: "agGroupCellRenderer", comparator: countryComparator, minWidth: 150 } ];

// 自定义分组比较器 function countryComparator(valueA, valueB, nodeA, nodeB, isInverted) { if (valueA == null && valueB == null) { return 0; } if (valueA == null) { return -1; } if (valueB == null) { return 1; }

return valueA.localeCompare(valueB);

}