diff --git a/实验7/src/task1/HelloCollections.java b/实验7/src/task1/HelloCollections.java
index 692c7ec..60facad 100644
--- a/实验7/src/task1/HelloCollections.java
+++ b/实验7/src/task1/HelloCollections.java
@@ -1,3 +1,4 @@
+//HelloCollections.java
 package task1;
 
 import java.util.ArrayList;