diff --git a/PACS_DICOM处理/数据处理网页端/app.py b/PACS_DICOM处理/数据处理网页端/app.py
index 4bf0480..475f5ff 100644
--- a/PACS_DICOM处理/数据处理网页端/app.py
+++ b/PACS_DICOM处理/数据处理网页端/app.py
@@ -1106,7 +1106,7 @@ def scan_study(ct_number: str) -> dict[str, Any]:
 
     def series_time_key(row: dict[str, Any]) -> tuple[str, int, str]:
         return (
-            row.get("series_time") or row.get("first_time") or row.get("study_time") or "",
+            row.get("first_time") or row.get("series_time") or row.get("study_time") or "",
             numeric(row.get("series_number", "")),
             row.get("description", ""),
         )
diff --git a/PACS_DICOM处理/数据处理网页端/static/app.js b/PACS_DICOM处理/数据处理网页端/static/app.js
index da310d9..c5206fe 100644
--- a/PACS_DICOM处理/数据处理网页端/static/app.js
+++ b/PACS_DICOM处理/数据处理网页端/static/app.js
@@ -108,7 +108,7 @@ function timeRange(series) {
 }
 
 function timeKey(series) {
-  return String(series.series_time || series.first_time || series.study_time || "").replace(/\D/g, "").padEnd(6, "0");
+  return String(series.first_time || series.series_time || series.study_time || "").replace(/\D/g, "").padEnd(6, "0");
 }
 
 function studyTimeKey(study) {