diff --git a/trunk/research/frame/frame0.cpp b/trunk/research/frame/frame0.cpp
index 251d02a00..a19163a93 100644
--- a/trunk/research/frame/frame0.cpp
+++ b/trunk/research/frame/frame0.cpp
@@ -1,4 +1,5 @@
 /*
+# https://winlin.blog.csdn.net/article/details/109356535
 g++ frame0.cpp -g -O0 -o frame && ./frame
 */
 #include <stdio.h>
diff --git a/trunk/research/frame/frame1.cpp b/trunk/research/frame/frame1.cpp
index 1722c8c5b..37f9f324f 100644
--- a/trunk/research/frame/frame1.cpp
+++ b/trunk/research/frame/frame1.cpp
@@ -1,4 +1,5 @@
 /*
+# https://winlin.blog.csdn.net/article/details/109356535
 g++ frame1.cpp -g -O0 -o frame && ./frame
 */
 #include <stdio.h>