diff --git a/set_use.py b/set_use.py
new file mode 100644
index 0000000..77ad08b
--- /dev/null
+++ b/set_use.py
@@ -0,0 +1,4 @@
+setA = set('asdfghjkl')
+setB = set('qweasdzxc')
+
+print("交集为 {}\n并集为 {}\n差集为 {}".format(setA.intersection(setB), setA.union(setB), setA.difference(setB)))
\ No newline at end of file