diff --git a/day6/homework/h9.cpp b/day6/homework/h9.cpp
new file mode 100644
index 0000000..90958d2
--- /dev/null
+++ b/day6/homework/h9.cpp
@@ -0,0 +1,15 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int a, b, c;
+    cout << "请输入三个数: ";
+    cin >> a >> b >> c;
+
+    int min = a < b ? (a < c ? a : c) : (b < c ? b : c);
+    cout << "其中最小的数是: " << min << endl;
+
+    return 0;
+}
\ No newline at end of file