diff --git a/notes/installation/Linux下JDK安装.md b/notes/installation/Linux下JDK安装.md
index 84e7624..124f3b9 100644
--- a/notes/installation/Linux下JDK安装.md
+++ b/notes/installation/Linux下JDK安装.md
@@ -1,6 +1,7 @@
 # Linux下JDK的安装
 
 >**系统环境**：centos 7.6
+>
 >**JDK版本**：jdk 1.8.0_20
 
 
@@ -51,4 +52,4 @@ java version "1.8.0_201"
 Java(TM) SE Runtime Environment (build 1.8.0_201-b09)
 Java HotSpot(TM) 64-Bit Server VM (build 25.201-b09, mixed mode)
 
-```
\ No newline at end of file
+```