diff --git a/hello.txt b/hello.txt
new file mode 100644
index 0000000..8e8fe0a
--- /dev/null
+++ b/hello.txt
@@ -0,0 +1 @@
+echo "Hello, world!"
\ No newline at end of file
diff --git a/test1.java b/test1.java
deleted file mode 100644
index a67cf81..0000000
--- a/test1.java
+++ /dev/null
@@ -1,14 +0,0 @@
-# 创建一个文件
-echo "Hello, world!" > hello.txt
-git add .
-git commit -m "Initial commit with v1"
-
-# 修改文件内容以创建v2
-echo "Hello, Git!" > hello.txt
-git add .
-git commit -m "Updated to v2"
-
-# 再次修改文件内容以创建v3
-echo "Hello, version control!" > hello.txt
-git add .
-git commit -m "Updated to v3"
\ No newline at end of file
diff --git a/test2.java b/test2.java
deleted file mode 100644
index e69de29..0000000