diff --git a/apps/enm/services.py b/apps/enm/services.py
index c5bf7711..bf08301c 100644
--- a/apps/enm/services.py
+++ b/apps/enm/services.py
@@ -42,11 +42,12 @@ def translate_eval_formula(exp_str: str, year: int, month: int, day: int, hour:
             # exp_str2 = exp_str2.replace(f"{{{match}}}", str(mpst.val))
             # 为了校正计算测点
             exp_str2 = exp_str2.replace(f"{{{match}}}", str(mpst.val if mpst.val_correct is None else mpst.val_correct))
+    rval = 0
     try:
         rval = eval(exp_str2)
     except Exception as e:
         myLogger.error(f"表达式计算错误: {e}, {exp_str}, --{exp_str2}")
-        
+        rval = 0
     return rval
 
 def transfer_mpoint_val_to_ep_running_state(current_val, base_val: float, expr_str: str):