diff --git a/数据结构与算法/source code/securityAlgorithm/src/main/java/com/snailclimb/ks/securityAlgorithm/DesDemo.java b/数据结构与算法/source code/securityAlgorithm/src/main/java/com/snailclimb/ks/securityAlgorithm/DesDemo.java
index 3339ea1c..ce8b09ee 100644
--- a/数据结构与算法/source code/securityAlgorithm/src/main/java/com/snailclimb/ks/securityAlgorithm/DesDemo.java	
+++ b/数据结构与算法/source code/securityAlgorithm/src/main/java/com/snailclimb/ks/securityAlgorithm/DesDemo.java	
@@ -27,9 +27,9 @@ public class DesDemo {
 		byte[] result;
 		try {
 			result = DesDemo.encrypt(str.getBytes(), password);
-			System.out.println("加密后：" + new String(result));
+			System.out.println("加密后：" + result);
 			byte[] decryResult = DesDemo.decrypt(result, password);
-			System.out.println("解密后：" + new String(decryResult));
+			System.out.println("解密后：" + decryResult);
 		} catch (UnsupportedEncodingException e2) {
 			// TODO Auto-generated catch block
 			e2.printStackTrace();
diff --git a/数据结构与算法/source code/securityAlgorithm/src/main/java/com/snailclimb/ks/securityAlgorithm/RSADemo.java b/数据结构与算法/source code/securityAlgorithm/src/main/java/com/snailclimb/ks/securityAlgorithm/RSADemo.java
index c7ddf105..5234028e 100644
--- a/数据结构与算法/source code/securityAlgorithm/src/main/java/com/snailclimb/ks/securityAlgorithm/RSADemo.java	
+++ b/数据结构与算法/source code/securityAlgorithm/src/main/java/com/snailclimb/ks/securityAlgorithm/RSADemo.java	
@@ -28,9 +28,9 @@ public class RSADemo {
 		System.out.println("-----------------------------------");
 		byte[] encryptByPrivateKey = encryptByPrivateKey("123456".getBytes(), privateKey);
 		byte[] encryptByPublicKey = encryptByPublicKey("123456", publicKey);
-		System.out.println(new String(encryptByPrivateKey));
+		System.out.println(encryptByPrivateKey);
 		System.out.println("-----------------------------------");
-		System.out.println(new String(encryptByPublicKey));
+		System.out.println(encryptByPublicKey);
 		System.out.println("-----------------------------------");
 		String sign = sign(encryptByPrivateKey, privateKey);
 		System.out.println(sign);
@@ -40,9 +40,9 @@ public class RSADemo {
 		System.out.println("-----------------------------------");
 		byte[] decryptByPublicKey = decryptByPublicKey(encryptByPrivateKey, publicKey);
 		byte[] decryptByPrivateKey = decryptByPrivateKey(encryptByPublicKey, privateKey);
-		System.out.println(new String(decryptByPublicKey));
+		System.out.println(decryptByPublicKey);
 		System.out.println("-----------------------------------");
-		System.out.println(new String(decryptByPrivateKey));
+		System.out.println(decryptByPrivateKey);
 
 	}