diff --git a/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/service/impl/Cet_4ServiceImpl.java b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/service/impl/Cet_4ServiceImpl.java
index 437542a3..419ddf14 100644
--- a/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/service/impl/Cet_4ServiceImpl.java
+++ b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/service/impl/Cet_4ServiceImpl.java
@@ -140,7 +140,16 @@ public class Cet_4ServiceImpl extends ServiceImpl<Cet_4Mapper, Cet_4> implements
         long passStudent = passedList.size();
         double passRateSum = (passStudent / (double) allStudent) * 100;
         String rate = decimalFormat.format(passRateSum);
-        double res = Double.parseDouble(rate);
+        double res;
+        try {
+            res= Double.parseDouble(rate);
+
+        }catch (NumberFormatException e){
+            e.printStackTrace();
+            res=0;
+
+        }
+//        double res = Double.parseDouble(rate);
         resultData.put("sumRate", res);