From 9e82fbc64f18f14ce1f34ebf9ad3ae349a521d50 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sat, 23 May 2026 23:58:53 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=86=95=20Add=20new=20subprocess=20test=20?=
 =?UTF-8?q?file?=
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---
 subprocess_test_2.py | 53 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100755 subprocess_test_2.py

diff --git a/subprocess_test_2.py b/subprocess_test_2.py
new file mode 100755
index 0000000..4dd0447
--- /dev/null
+++ b/subprocess_test_2.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+
+import locale
+import os
+import subprocess
+
+if __name__ == "__main__":
+    print("*" * 100)
+    print(locale.getpreferredencoding())
+
+    print("*" * 100)
+    result = subprocess.run(
+        ['env'],
+        capture_output=True,
+    )
+    result.check_returncode()
+    print('return code:', result.returncode)
+    print(result.stdout)
+    print("*" * 100)
+    result = subprocess.run(
+        ['env'],
+        capture_output=True,
+        text=True,
+        encoding='utf-8',
+    )
+    result.check_returncode()
+    print('return code:', result.returncode)
+    print(f"{result.stdout[:100]}******")
+
+    print("*" * 100)
+    subprocess.run(
+        ['env'],
+        env={"NAME": "hatter"},
+    )
+
+    print("*" * 100)
+    my_env = os.environ.copy()
+    my_env["NAME"] = "hatter"
+    subprocess.run(
+        ['sleep', '5'],
+        env=my_env,
+        check=True,  # 非 0 返回时抛出异常
+    )
+
+    print("*" * 100)
+    subprocess.Popen(
+        ['sleep', '50'],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+        preexec_fn=os.setpgrp  # 让子进程独立，即使当前脚本挂了它也继续运行
+    )
+
+    print("*" * 100)