diff --git a/src/components/Common/CommonBase.js b/src/components/Common/CommonBase.js
index f5c57d2..b74e8b9 100644
--- a/src/components/Common/CommonBase.js
+++ b/src/components/Common/CommonBase.js
@@ -2652,9 +2652,28 @@ export default (ChildComponent) => {
             newCopyTo.control = controlData[iControlIndex];
           }
           if (selectConfig?.sControlName?.toLowerCase().includes('_edit')) {
-            const sActiveKey = selectConfig.sDefault;
-            // 检查当前 item 的 sActiveKey 是否已经在 tableData 中存在
-            const existRowIndex = tableData.findIndex(row => row?.[sActiveKey] === item?.[sActiveKey]);
+            const sActiveKey = selectConfig?.sDefault || '';
+            const keyParts = sActiveKey.split('.'); // slave.A.B 或 slave.A
+            const len = keyParts.length;
+
+            let lastSecondKey = '';
+            let lastKey = '';
+
+            if (len === 3) {
+              // 格式：slave.A.B → 取 A 和 B
+              lastSecondKey = keyParts[1]; // A
+              lastKey = keyParts[2];       // B
+            } else if (len === 2) {
+              // 格式：slave.A → 取 A 和 A
+              lastSecondKey = keyParts[1]; // A
+              lastKey = keyParts[1];       // A
+            } else {
+              lastSecondKey = sActiveKey;
+              lastKey = lastSecondKey;
+            }
+            const existRowIndex = tableData.findIndex(
+              row => row[lastSecondKey] === item[lastKey]
+            );
             console.log('existRowInd1ex', sActiveKey, existRowIndex);
             if ( sActiveKey && existRowIndex !== -1 ) {
               let tableDataRow = { ...tableData[existRowIndex] };