若要使用Python查询已连接设备当前前台正在运行的应用包名，一般要借助`adb`（Android Debug Bridge）工具，它可与Android设备进行通信。以下是示例代码： ```python import subprocess def get_foreground_app_package(): try: # 执行adb命令获取前台应用信息 command = 'adb shell dumpsys window windows | grep -E "mCurrentFocus|mFocusedApp"' result = subprocess.run(command, shell=True, capture_output=True, text=True) output = result.stdout # 解析输出以提取包名 lines = output.splitlines() for line in lines: if "mCurrentFocus" in line or "mFocusedApp" in line: start_index = line.find('{') if start_index != -1: end_index = line.find('}', start_index) if end_index != -1: parts = line[start_index + 1:end_index].split() for part in parts: if '/' in part: package_name = part.split('/')[0] return package_name return None except Exception as e: print(f"Error: {e}") return None # 调用函数获取前台应用包名 package = get_foreground_app_package() if package: print(f"当前前台运行的应用包名: {package}") else: print("未获取到前台应用包名。") ``` 此代码通过`subprocess`模块执行`adb`命令来获取设备的窗口信息，之后解析输出以提取当前前台运行应用的包名。