diff --git a/src/main/java/club/shengsheng/MyClassLoader.java b/src/main/java/club/shengsheng/MyClassLoader.java
index 21026cf..bc5e2b7 100644
--- a/src/main/java/club/shengsheng/MyClassLoader.java
+++ b/src/main/java/club/shengsheng/MyClassLoader.java
@@ -1,9 +1,40 @@
 package club.shengsheng;
 
 
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+
 /**
  * @author gongxuanzhangmelt@gmail.com
  **/
 public class MyClassLoader extends ClassLoader {
 
+    @Override
+    public Class<?> loadClass(String name) throws ClassNotFoundException {
+        synchronized (getClassLoadingLock(name)) {
+            Class<?> c = findLoadedClass(name);
+            if (c != null) {
+                return c;
+            }
+            if (!"tech.insight.ShengSheng".equals(name)) {
+                return super.loadClass(name);
+            }
+            return findClass(name);
+        }
+    }
+
+    @Override
+    protected Class<?> findClass(String name) throws ClassNotFoundException {
+        File classFile = new File(".", "加密.class");
+        try {
+            byte[] b = Files.readAllBytes(classFile.toPath());
+            for (int i = 0; i < b.length; i++) {
+                b[i]--;
+            }
+            return defineClass(name, b, 0, b.length);
+        } catch (IOException e) {
+            throw new ClassNotFoundException("加密.class");
+        }
+    }
 }