diff --git a/pythonProject/内置函数/sort.py b/pythonProject/内置函数/sort.py
new file mode 100644
index 0000000..6641e49
--- /dev/null
+++ b/pythonProject/内置函数/sort.py
@@ -0,0 +1,4 @@
+a= [11,9,8,4,5,6,7,8,1,2]
+a.sort(reverse=True)
+print(a)
+# 仅支持对list排序，会修改原list
\ No newline at end of file