diff --git a/encodeutils/src/main/java/org/forevery/EncodeUtils/Encode/RC4/RC4_Utils.java b/encodeutils/src/main/java/org/forevery/EncodeUtils/Encode/RC4/RC4_Utils.java
index c0898d0..c4cf028 100644
--- a/encodeutils/src/main/java/org/forevery/EncodeUtils/Encode/RC4/RC4_Utils.java
+++ b/encodeutils/src/main/java/org/forevery/EncodeUtils/Encode/RC4/RC4_Utils.java
@@ -7,6 +7,12 @@
 
 public class RC4_Utils {
 
+    /**
+     * @param data 数据
+     * @param key  密钥
+     * @return String
+     */
+
     private String Decry(byte[] data, String key) {
         if (data == null || key == null) {
             return null;