From 7b0715e3b17ef624da37650c236c3244168e0cc1 Mon Sep 17 00:00:00 2001
From: Hoky <303455184@qq.com>
Date: Thu, 30 Dec 2021 13:52:20 +0800
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---
 .../formula/exception/function/FormulaCheckWrongFunction.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/designer-base/src/main/java/com/fr/design/formula/exception/function/FormulaCheckWrongFunction.java b/designer-base/src/main/java/com/fr/design/formula/exception/function/FormulaCheckWrongFunction.java
index ce2b7cb52..5328ca56e 100644
--- a/designer-base/src/main/java/com/fr/design/formula/exception/function/FormulaCheckWrongFunction.java
+++ b/designer-base/src/main/java/com/fr/design/formula/exception/function/FormulaCheckWrongFunction.java
@@ -73,6 +73,8 @@ public class FormulaCheckWrongFunction implements Function<Exception, FormulaChe
         if (invalidFormula.contains(",")) {
             invalidFormula = invalidFormula.substring(0, invalidFormula.indexOf(","));
         }
-        return formulaText.indexOf(invalidFormula);
+        int index = formulaText.indexOf(invalidFormula);
+        return Math.max(index, 0);
     }
+
 }