-

arm_server/requirements.txt

@@ -1,3 +1,3 @@
 # 机械臂端依赖（最少依赖）
 # RoboFlow 已在树莓派上运行，此端仅做透传
-flask>=2.0
+flask>=1.0,<2.3

arm_server/start.sh

@@ -2,4 +2,11 @@
 # 启动机械臂服务端
 
 cd ~/work/arm_server
-python3 arm_server.py
+PYTHON_BIN="${PYTHON_BIN:-/usr/bin/python3}"
+
+if ! "$PYTHON_BIN" -c "import flask" >/dev/null 2>&1; then
+    echo "Flask 未安装，正在安装 requirements.txt..."
+    "$PYTHON_BIN" -m pip install --user -r requirements.txt
+fi
+
+exec "$PYTHON_BIN" arm_server.py