diff --git a/demo/client.py b/demo/client.py
new file mode 100644
index 0000000..a97eec3
--- /dev/null
+++ b/demo/client.py
@@ -0,0 +1,33 @@
+"""TCP 单次发送客户端：发送 3 条测试消息，验证基本连通性"""
+
+import socket
+import time
+
+HOST = "127.0.0.1"
+PORT = 8888
+MESSAGE_COUNT = 3
+
+
+def send_once(index: int) -> bool:
+    try:
+        client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        client.settimeout(5)
+        client.connect((HOST, PORT))
+        msg = f"test_message_{index}_{time.time()}"
+        client.send(msg.encode("utf-8"))
+        reply = client.recv(1024)
+        client.close()
+        print(f"消息 {index} 发送成功，回复: {reply.decode('utf-8', errors='replace')}")
+        return True
+    except Exception as exc:
+        print(f"消息 {index} 失败: {exc}")
+        return False
+
+
+if __name__ == "__main__":
+    print(f"开始连通性测试: 发送 {MESSAGE_COUNT} 条消息到 {HOST}:{PORT}")
+    success = 0
+    for i in range(MESSAGE_COUNT):
+        if send_once(i):
+            success += 1
+    print(f"完成: 成功 {success}/{MESSAGE_COUNT}")
diff --git a/demo/server.py b/demo/server.py
new file mode 100644
index 0000000..9deba68
--- /dev/null
+++ b/demo/server.py
@@ -0,0 +1,48 @@
+"""TCP 文本写入服务端（实验大纲示例应用）"""
+
+import os
+import socket
+
+HOST = "0.0.0.0"
+PORT = 8888
+SAVE_PATH = "./data.txt"
+
+if not os.path.exists(os.path.dirname(SAVE_PATH)) and os.path.dirname(SAVE_PATH):
+    os.makedirs(os.path.dirname(SAVE_PATH))
+
+
+def save_to_file(content):
+    """文本追加写入本地磁盘"""
+    with open(SAVE_PATH, "a", encoding="utf-8") as f:
+        f.write(content + "\n")
+
+
+def main():
+    server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    server_socket.bind((HOST, PORT))
+    server_socket.listen(5)
+    print(f"TCP 写入服务已启动，监听端口：{PORT}")
+    print(f"数据保存路径：{os.path.abspath(SAVE_PATH)}")
+
+    while True:
+        conn, addr = server_socket.accept()
+        print(f"\n客户端已连接：{addr}")
+        try:
+            while True:
+                data = conn.recv(1024)
+                if not data:
+                    break
+                text = data.decode("utf-8").strip()
+                print(f"收到数据：{text}")
+                save_to_file(text)
+                conn.send("写入成功，数据已保存到磁盘".encode("utf-8"))
+        except Exception as e:
+            print(f"连接异常：{e}")
+        finally:
+            conn.close()
+            print("客户端连接断开")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/demo/stress_client.py b/demo/stress_client.py
new file mode 100644
index 0000000..e939ef9
--- /dev/null
+++ b/demo/stress_client.py
@@ -0,0 +1,47 @@
+"""TCP 压力测试客户端：模拟峰值负载，触发大量系统调用"""
+
+import argparse
+import socket
+import time
+from concurrent.futures import ThreadPoolExecutor, as_completed
+
+HOST = "127.0.0.1"
+PORT = 8888
+
+
+def send_once(index: int) -> bool:
+    try:
+        client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        client.settimeout(5)
+        client.connect((HOST, PORT))
+        msg = f"stress_test_message_{index}_{time.time()}"
+        client.send(msg.encode("utf-8"))
+        client.recv(1024)
+        client.close()
+        return True
+    except Exception as exc:
+        print(f"请求 {index} 失败: {exc}")
+        return False
+
+
+def run_stress(total: int, workers: int):
+    print(f"开始压力测试: {total} 次请求, {workers} 并发")
+    start = time.time()
+    success = 0
+
+    with ThreadPoolExecutor(max_workers=workers) as pool:
+        futures = [pool.submit(send_once, i) for i in range(total)]
+        for future in as_completed(futures):
+            if future.result():
+                success += 1
+
+    elapsed = time.time() - start
+    print(f"完成: 成功 {success}/{total}, 耗时 {elapsed:.2f}s, QPS={success/elapsed:.1f}")
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="TCP 压力测试客户端")
+    parser.add_argument("-n", "--count", type=int, default=200, help="总请求数")
+    parser.add_argument("-w", "--workers", type=int, default=20, help="并发线程数")
+    args = parser.parse_args()
+    run_stress(args.count, args.workers)
\ No newline at end of file
diff --git a/hello.py b/hello.py
new file mode 100644
index 0000000..9333e42
--- /dev/null
+++ b/hello.py
@@ -0,0 +1,22 @@
+"""基础验证：eBPF kprobe Hello World 程序（实验大纲 基础验证部分）"""
+
+from bcc import BPF
+
+prog = """
+int hello(void *ctx) {
+    bpf_trace_printk("Hello, World!\\n");
+    return 0;
+}
+"""
+
+b = BPF(text=prog)
+execve_function = b.get_syscall_fnname("execve")
+b.attach_kprobe(event=execve_function, fn_name="hello")
+
+print("%-18s %-16s %-6s %s" % ("TIME(s)", "COMM", "PID", "MESSAGE"))
+while True:
+    try:
+        task, pid, cpu, flags, ts, msg = b.trace_fields()
+    except ValueError:
+        continue
+    print("%-18.9f %-16s %-6d %s" % (ts, task, pid, msg))
\ No newline at end of file
diff --git a/main.py b/main.py
index 24b3aba..1114092 100644
--- a/main.py
+++ b/main.py
@@ -6,7 +6,7 @@
 import os
 import sys
 
-# 引入 Flask 应用，用于创建 Web 服务实例
+# 引入 Flask 应用工厂，用于创建 Web 服务实例
 from web.app import create_app