diff --git a/src/main/java/com/sunyard/sge/database/SydApiSM4.java b/src/main/java/com/sunyard/sge/database/SydApiSM4.java
index 8e24524..a04077c 100644
--- a/src/main/java/com/sunyard/sge/database/SydApiSM4.java
+++ b/src/main/java/com/sunyard/sge/database/SydApiSM4.java
@@ -103,9 +103,12 @@ public class SydApiSM4 {
             }
             int length=(pcData.length/16)-1;
             byte[] bytes = new byte[16];
+            dataResult = bytes;
+            byte[] bytes1 = new byte[pcData.length-16];
             System.arraycopy(pcData,length*16,bytes,0,16);
-            System.out.println(bytes);
-            return null;
+            System.arraycopy(pcData,1,bytes1,0,pcData.length-16);
+            iPkgNum = 2;
+            return api.SYD_SM4_LongData(iKeyIndex,bytes1,iPkgNum,iFlag);
         }
 
     }
@@ -130,7 +133,7 @@ public class SydApiSM4 {
             sourceWrap = null;
             return bytes;
         }
-        byte[] bytes = api.SYD_SM4_LongData(iKeyIndex,sourceWrap.array(), iPkgNum, iFlag);
+        byte[] bytes = api.SYD_SM4_LongData(iKeyIndex,dataResult, iPkgNum, iFlag);
         sourceWrap = null;
         return bytes;
     }