diff --git a/README.md b/README.md
index 832de98..9cf9f9f 100644
--- a/README.md
+++ b/README.md
@@ -13,3 +13,5 @@
 #### day9: 指针高级
 
 #### day10: 数组指针，函数与指针，动态内存申请
+
+#### day11: 动态内存申请，内存泄漏，字符串处理函数