update comment

2 files changed, 2 insertions, 2 deletions

diff --git a/list.c b/list.c
index 85a7093..5d8ebde 100644
--- a/list.c
+++ b/list.c
@@ -1,5 +1,5 @@
 // references:
-// "C Primer Plus" Chapter17 practice 17 problem 2
+// "C Primer Plus" Chapter17 practice problem 2
 
 //list.c--支持列表操作的函数
 #include <stdio.h>
diff --git a/list.h b/list.h
index ddc523e..712a6fe 100644
--- a/list.h
+++ b/list.h
@@ -1,5 +1,5 @@
 // references:
-// "C Primer Plus" Chapter17 practice 17 problem 2
+// "C Primer Plus" Chapter17 practice problem 2
 
 /*list.h--简单列表类型的头文件*/
 #ifndef LIST_H_