diff --git a/frontend/src/views/machine/testSource/components/parameterTable.vue b/frontend/src/views/machine/testSource/components/parameterTable.vue
index cad7812..131a1d0 100644
--- a/frontend/src/views/machine/testSource/components/parameterTable.vue
+++ b/frontend/src/views/machine/testSource/components/parameterTable.vue
@@ -6,9 +6,9 @@
         :pagination="false"
         :toolButton="false"
         :data="tableData"
-        row-key="id"
+        :row-key="id"
         :style="{ height: '250px',maxHeight: '400px',overflow:'hidden'}"
-        :expand-row-keys="['0']"
+        :expand-row-keys="defaultExpandRowKeys"
     >
       <!-- 表格 header 按钮 -->
       <template #tableHeader='scope'>
@@ -71,25 +71,26 @@ watch(() => props.parameterStr, (newData) => {
 })
 
 const defaultExpandRowKeys =computed(() => {
- return '548c00d2e4744c38aee938cb08e2ff3b'
+ return getDefaultKeyArray(tableData.value)
 })
 
-const getDefaultKey = (data: any[]) => {
+const getDefaultKeyArray = (data: any[]) => {
   if (!data || data.length === 0) {
-    return [];
+    return []
   }
 
-  const firstElement = data[0];
+  const firstElement = data[0]
+  let result: any[] = []
+  recursion(firstElement,result)
 
-  return findFirstLeafNode(firstElement);
+  return result
 }
 
-const findFirstLeafNode = (node: any): any => {
-  if (!node.children || node.children.length === 0) {
-    return node.id;
+const recursion = (node: any, result: any[]) => {
+  if (node.children && node.children.length !== 0) {
+    result.push(node.id)
+    recursion(node.children[0], result)
   }
-
-  return findFirstLeafNode(node.children[0]);
 }
 
 const getTableList = () => {