diff --git a/subprocess_open_test.py b/subprocess_open_test.py
new file mode 100644
index 0000000..ce32e9c
--- /dev/null
+++ b/subprocess_open_test.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+import subprocess
+from pathlib import Path
+
+if __name__ == "__main__":
+    with open("output.log", "w") as f:
+        process = subprocess.Popen(
+            ["ls", "-l"],
+            # cwd="/tmp",
+            stdout=f,
+            stderr=f,
+        )
+        process.wait()  # 等待进程结束
+
+    t = Path("output.log").read_text(encoding="utf-8")
+
+    print(t)