diff --git a/designer_base/src/com/fr/design/formula/FormulaPane.java b/designer_base/src/com/fr/design/formula/FormulaPane.java
index 260ca917b7..e33a9414d6 100644
--- a/designer_base/src/com/fr/design/formula/FormulaPane.java
+++ b/designer_base/src/com/fr/design/formula/FormulaPane.java
@@ -23,6 +23,7 @@ import com.fr.general.Inter;
 import com.fr.parser.FRLexer;
 import com.fr.parser.FRParser;
 import com.fr.plugin.ExtraClassManager;
+import com.fr.script.FunctionDefContainer;
 import com.fr.stable.ProductConstants;
 import com.fr.stable.StringUtils;
 import com.fr.stable.fun.mark.Mutable;
@@ -619,7 +620,7 @@ public class FormulaPane extends BasicPane implements KeyListener, UIFormula{
              functionTypeListModel.addElement(FunctionConstants.CUSTOM);
              functionTypeListModel.addElement(FunctionConstants.PLUGIN);
              //hugh:自定义函数分组
-             Set<Mutable> groups = ExtraClassManager.getInstance().getArray(FunctionGroup.MARK_STRING);
+             Set<Mutable> groups = ExtraClassManager.getInstance().getArray(FunctionDefContainer.MARK_STRING);
              if(!groups.isEmpty()){
              	for(Mutable group : groups){
              		functionTypeListModel.addElement(group);
diff --git a/designer_base/src/com/fr/design/formula/FunctionConstants.java b/designer_base/src/com/fr/design/formula/FunctionConstants.java
index 372409583d..1194418e7f 100644
--- a/designer_base/src/com/fr/design/formula/FunctionConstants.java
+++ b/designer_base/src/com/fr/design/formula/FunctionConstants.java
@@ -7,6 +7,7 @@ import com.fr.function.*;
 import com.fr.general.ComparatorUtils;
 import com.fr.general.Inter;
 import com.fr.plugin.ExtraClassManager;
+import com.fr.script.FunctionDefContainer;
 import com.fr.stable.EncodeConstants;
 import com.fr.stable.OperatingSystem;
 import com.fr.stable.StableUtils;
@@ -98,7 +99,7 @@ public abstract class FunctionConstants {
             Collections.addAll(all, PLUGIN.getDescriptions());
             Collections.addAll(all, CUSTOM.getDescriptions());
             //hugh:自定义函数分组
-            Set<Mutable> groups = ExtraClassManager.getInstance().getArray(FunctionGroup.MARK_STRING);
+            Set<Mutable> groups = ExtraClassManager.getInstance().getArray(FunctionDefContainer.MARK_STRING);
             if(!groups.isEmpty()){
             	for(Mutable group : groups){
             		Collections.addAll(all, ((FunctionGroup)group).getDescriptions());
diff --git a/designer_base/src/com/fr/design/formula/FunctionGroup.java b/designer_base/src/com/fr/design/formula/FunctionGroup.java
index b2d181b125..4764454ede 100644
--- a/designer_base/src/com/fr/design/formula/FunctionGroup.java
+++ b/designer_base/src/com/fr/design/formula/FunctionGroup.java
@@ -2,10 +2,6 @@ package com.fr.design.formula;
 
 
 public interface FunctionGroup {
-	
-	int CURRENT_LEVEL = 1;
-	String MARK_STRING = "FunctionGroup";
-	
 	String getGroupName();
 	NameAndDescription[] getDescriptions();
 }
\ No newline at end of file
diff --git a/designer_base/src/com/fr/design/fun/impl/AbstractFunctionGroup.java b/designer_base/src/com/fr/design/fun/impl/AbstractFunctionGroup.java
index 6743393623..bd6a0c6363 100644
--- a/designer_base/src/com/fr/design/fun/impl/AbstractFunctionGroup.java
+++ b/designer_base/src/com/fr/design/fun/impl/AbstractFunctionGroup.java
@@ -3,17 +3,18 @@ package com.fr.design.fun.impl;
 import com.fr.design.formula.FunctionDefNAD;
 import com.fr.design.formula.FunctionGroup;
 import com.fr.design.formula.NameAndDescription;
+import com.fr.script.FunctionDefContainer;
 import com.fr.stable.fun.mark.API;
 import com.fr.stable.fun.mark.Mutable;
 import com.fr.stable.script.FunctionDef;
 
 
-@API(level = FunctionGroup.CURRENT_LEVEL)
-public abstract class AbstractFunctionGroup implements Mutable, FunctionGroup {
+@API(level = FunctionDefContainer.CURRENT_LEVEL)
+public abstract class AbstractFunctionGroup implements Mutable, FunctionGroup,FunctionDefContainer {
 	
 	@Override
 	public int currentAPILevel() {
-		return CURRENT_LEVEL;
+		return FunctionDefContainer.CURRENT_LEVEL;
 	}
 	
 	@Override
@@ -32,6 +33,7 @@ public abstract class AbstractFunctionGroup implements Mutable, FunctionGroup {
         return nads;
 	}
 	
+	@Override
 	public FunctionDef[]  getFunctionDefs(){
 		return new FunctionDef[0];
 	}