diff --git a/demo.txt b/demo.txt
new file mode 100644
index 0000000000000000000000000000000000000000..3c8e78610ed34561b54814d135b47830e415ce74
--- /dev/null
+++ b/demo.txt
@@ -0,0 +1 @@
+演示
\ No newline at end of file