diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..899f6d7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+readme4.txt
\ No newline at end of file
diff --git a/readme.txt b/readme.txt
index e6bae07..fb8d1d8 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,3 +1,2 @@
 Git is a distributed version control system.
-Creating a new branch is quick and simple.
-加个尾巴
\ No newline at end of file
+Creating a new branch is quick and simple.
\ No newline at end of file