diff --git a/1 String/java String.md b/1 String/java String.md
index bcf2e29..e84a90e 100644
--- a/1 String/java String.md	
+++ b/1 String/java String.md	
@@ -3,3 +3,6 @@
 Java 中 String 实现。
 
 
+
+
+
diff --git a/9 Algorithms Job Interview/README.md b/9 Algorithms Job Interview/README.md
index d703c67..b2ce9c5 100644
--- a/9 Algorithms Job Interview/README.md	
+++ b/9 Algorithms Job Interview/README.md	
@@ -163,7 +163,7 @@ public static boolean hasCycle(LinkNode head) {
 滑动窗口： 无重复字符的最长子串
 
 ```Java
-
+//如 ”abcabbcbb“ 输出 3
 public static int longestSubString(char[] s){
         int left = 0, right = 0;
         int res = 0; // 记录最长结果