diff --git a/sl2-100/udp_forwarder.py b/sl2-100/udp_forwarder.py
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+++ b/sl2-100/udp_forwarder.py
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+##
+## SL2-100 UDP Forwarder
+## 监控 CSV 文件，将新行通过 UDP 发送到目标端口
+##
+## 用法: python udp_forwarder.py [csv文件路径] [目标IP] [目标端口]
+## 示例: python udp_forwarder.py d:/sl2-100.csv 127.0.0.1 12345
+## 默认: python udp_forwarder.py d:/sl2-100.csv 127.0.0.1 12345
+##
+
+import socket
+import sys
+import os
+import time
+
+
+def main():
+    # 默认参数
+    csv_file = "d:/sl2-100.csv"
+    target_host = "192.168.1.155"
+    target_port = 41234
+
+    # 命令行参数解析
+    if len(sys.argv) >= 2:
+        csv_file = sys.argv[1]
+    if len(sys.argv) >= 3:
+        target_host = sys.argv[2]
+    if len(sys.argv) >= 4:
+        target_port = int(sys.argv[3])
+
+    print(f"[UDP Forwarder] 启动")
+    print(f"  CSV 文件: {csv_file}")
+    print(f"  UDP 目标: {target_host}:{target_port}")
+    print(f"  等待 CSV 文件生成...")
+
+    # 创建 UDP socket
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+
+    # 等待 CSV 文件出现
+    while not os.path.exists(csv_file):
+        time.sleep(0.1)
+
+    print(f"  CSV 文件已发现，开始监控...")
+
+    # 读取文件初始大小（跳过表头）
+    file_size = os.path.getsize(csv_file)
+    with open(csv_file, 'r', encoding='gbk') as f:
+        header = f.readline()  # 跳过 "x坐标,y坐标" 表头
+        file_size = os.path.getsize(csv_file)
+    print(f"  已跳过表头: {header.strip()}")
+
+    # 轮询文件变化
+    while True:
+        try:
+            current_size = os.path.getsize(csv_file)
+            if current_size < file_size:
+                # 文件被截断了（重新开始），重新定位
+                print(f"  检测到文件被重置，重新开始跟踪")
+                file_size = current_size
+                with open(csv_file, 'r', encoding='gbk') as f:
+                    f.readline()  # 跳过表头
+                    file_size = os.path.getsize(csv_file)
+
+            if current_size > file_size:
+                # 有新数据写入
+                with open(csv_file, 'r', encoding='gbk') as f:
+                    f.seek(file_size)
+                    new_lines = f.read()
+                    file_size = current_size
+
+                # 逐行发送
+                for line in new_lines.strip().split('\n'):
+                    line = line.strip()+',0'
+                    if line:
+                        data = (line + '\n').encode('utf-8')
+                        sock.sendto(data, (target_host, target_port))
+                        print(f"  UDP -> {target_host}:{target_port}: {line}")
+
+            time.sleep(0.01)  # 10ms 轮询间隔
+
+        except FileNotFoundError:
+            print(f"  CSV 文件丢失，等待重新创建...")
+            while not os.path.exists(csv_file):
+                time.sleep(0.5)
+            file_size = 0
+            print(f"  CSV 文件重新出现，继续监控...")
+        except KeyboardInterrupt:
+            print(f"\n[UDP Forwarder] 已停止")
+            break
+        except Exception as e:
+            print(f"  错误: {e}")
+            time.sleep(0.5)
+
+    sock.close()
+
+
+if __name__ == '__main__':
+    main()
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