diff --git a/server.py b/server.py
index af08530..45cc34f 100644
--- a/server.py
+++ b/server.py
@@ -223,13 +223,14 @@ def update_task_status(task: dict, status: str, progress: int, data: list = []):
     requests.put(f"http://localhost:3000/api/drawing/{task['id']}", json=task)
 
 # 从局域网中获取一组任务(如果列表为空，等待2s后重新获取)
-def get_tasks():
-    tasks = requests.get("http://localhost:3000/api/drawing?status=waiting").json()
-    if len(tasks) == 0:
-        while len(tasks) == 0:
-            print('no task, wait 2s...')
-            time.sleep(2)
+def get_tasks(tasks:list=[]):
+    while len(tasks) == 0:
+        try:
             tasks = requests.get("http://localhost:3000/api/drawing?status=waiting").json()
+            if len(tasks) == 0: time.sleep(2)
+        except:
+            print("get tasks error")
+            time.sleep(2)
     return tasks
 
 def main_dev(opt):