diff --git a/实验8/src/step3/DeleteFiles.java b/实验8/src/step3/DeleteFiles.java
index 041d5fc..cf3bf3d 100644
--- a/实验8/src/step3/DeleteFiles.java
+++ b/实验8/src/step3/DeleteFiles.java
@@ -1,3 +1,4 @@
+//DeleteFiles.java
 package step3;
 
 import java.io.File;
diff --git a/实验8/src/step3/test.java b/实验8/src/step3/test.java
new file mode 100644
index 0000000..1f03db5
--- /dev/null
+++ b/实验8/src/step3/test.java
@@ -0,0 +1,11 @@
+//test.java
+package step3;
+
+import java.io.IOException;
+
+public class test {
+    public static void main(String[] args) throws IOException {
+        DeleteFiles deleteFiles = new DeleteFiles();
+        deleteFiles.start();
+    }
+}