diff --git a/ServerDocument.md b/ServerDocument.md
index d1e69f3..5f82e14 100644
--- a/ServerDocument.md
+++ b/ServerDocument.md
@@ -42,7 +42,7 @@
 --------------------------------
 
 
-···java
+```java
 
 	/**
 	 * 签名算法
@@ -74,4 +74,4 @@
 		String computedToken = DigestUtils.md5DigestAsHex(params.getBytes());
 		return computedToken;
 	}
-···
\ No newline at end of file
+```
\ No newline at end of file