diff --git a/scripts/ci/pr_auto_scan.py b/scripts/ci/pr_auto_scan.py
index 9ddfc936f..c4c5a3efb 100644
--- a/scripts/ci/pr_auto_scan.py
+++ b/scripts/ci/pr_auto_scan.py
@@ -6,8 +6,6 @@ PR自动扫描器：扫描所有open PR，对CI全绿的进行自动审批/合
 
 import argparse
 import json
-import os
-import sys
 import time
 import urllib.error
 import urllib.request
@@ -272,12 +270,12 @@ def main():
         # === 自动审批 ===
         if args.approve and all_ok and not failed:
             if has_approval(args.token, args.repo, pr_num):
-                print(f"  ✅ 已有审批，跳过")
+                print("  ✅ 已有审批，跳过")
             else:
                 if dry_run:
-                    print(f"  🎯 [DRY-RUN] 将自动审批")
+                    print("  🎯 [DRY-RUN] 将自动审批")
                 else:
-                    print(f"  🎯 执行自动审批...")
+                    print("  🎯 执行自动审批...")
                     ok, msg = approve_pr(args.token, args.repo, pr_num)
                     if ok:
                         print(f"  ✅ 审批成功: {msg}")
@@ -285,9 +283,9 @@ def main():
                     else:
                         print(f"  ❌ 审批失败: {msg}")
         elif failed:
-            print(f"  ❌ CI有失败项，跳过审批")
+            print("  ❌ CI有失败项，跳过审批")
         elif pending:
-            print(f"  ⏳ CI仍在运行，跳过")
+            print("  ⏳ CI仍在运行，跳过")
 
         # === 自动合并 ===
         if args.merge:
@@ -301,9 +299,9 @@ def main():
 
             if merge_ok and approved and not merge_failed:
                 if dry_run:
-                    print(f"  🎯 [DRY-RUN] 将自动合并")
+                    print("  🎯 [DRY-RUN] 将自动合并")
                 else:
-                    print(f"  🎯 执行自动合并...")
+                    print("  🎯 执行自动合并...")
                     ok, msg = merge_pr(args.token, args.repo, pr_num)
                     if ok:
                         print(f"  ✅ 合并成功: {msg}")
@@ -311,13 +309,13 @@ def main():
                     else:
                         print(f"  ⚠️  合并失败: {msg}")
             elif merge_pending:
-                print(f"  ⏳ 合并条件未满足: CI运行中")
+                print("  ⏳ 合并条件未满足: CI运行中")
             elif merge_failed:
-                print(f"  ❌ 合并条件未满足: CI有失败")
+                print("  ❌ 合并条件未满足: CI有失败")
             elif not approved:
-                print(f"  ⏳ 合并条件未满足: 无审批")
+                print("  ⏳ 合并条件未满足: 无审批")
 
-    print(f"\n=== 扫描结果 ===")
+    print("\n=== 扫描结果 ===")
     print(f"  处理PR数: {min(len(prs), args.max_prs)}")
     print(f"  自动审批: {approved_count} 个")
     print(f"  自动合并: {merged_count} 个")