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Python+QT远程控制助手
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前言

这篇博客针对《Python+QT远程控制助手》编写代码，代码整洁，规则，易读。 学习与应用推荐首选。

文章目录

一、所需工具软件
二、使用步骤
       1. 主要代码
       2. 运行结果
三、在线协助

一、所需工具软件

       1. Python
       2. Pycharm

二、使用步骤

代码如下（示例）：

def hash_password(password):return hashlib.sha256((password + PASSWORD_SALT).encode('utf-8')).hexdigest()
def send_message(sock, message):data = json.dumps(message).encode('utf-8')sock.sendall(len(data).to_bytes(4, 'big') + data)
def recv_message(sock):numT2 = 0length_bytes = sock.recv(4)if not length_bytes:return Nonelength = int.from_bytes(length_bytes, 'big')data = b''while len(data) < length:chunk = sock.recv(min(4096, length - len(data)))if not chunk:return Nonedata += chunknumT2 += 1print("recv_message : ", numT2)return json.loads(data.decode('utf-8'))
class RemoteControlClient(QWidget):def __init__(self):super().__init__()def send_keepalive(self):while True:time.sleep(30)if self.sock:try:send_message(self.sock, {'type': 'keepalive','timestamp': int(time.time())})# print("主控端发送心跳包")except Exception as e:print("主控端心跳包发送失败:", e)breakdef connect_remote(self):self.target_id = self.id_input.text().strip()password = self.pwd_input.text().strip()if not self.target_id or not password:QMessageBox.warning(self, "错误", "请输入目标ID和密码")returnself.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)try:self.sock.connect((SERVER_HOST, SERVER_PORT))self.sock.settimeout(300)  # 这里加上except Exception as e:QMessageBox.warning(self, "错误", f"连接服务器失败: {e}")return# 注册（主控端用随机ID即可）#my_id = "CTRL" + str(int(time.time()))[-6:]my_id = "CTRL_MAIN"send_message(self.sock, {'type': 'register','data': {'device_id': my_id, 'password_hash': hash_password(password)},'timestamp': int(time.time())})# 等待注册确认while True:msg = recv_message(self.sock)if msg and msg.get('type') == 'register_ack' and msg.get('status') == 'success':break#注册成功后启动心跳包threading.Thread(target=self.send_keepalive, daemon=True).start()# 发起连接请求send_message(self.sock, {'type': 'peer_message','target_device_id': self.target_id,'data': json.dumps({'type': 'CONNECT_REQUEST','source_device_id': my_id,'password': hash_password(password),'timestamp': int(time.time())}),'timestamp': int(time.time())})self.label.setText("等待对方接受...")threading.Thread(target=self.recv_loop, daemon=True).start()def recv_loop(self):print("recv_loop")while True:try:msg = recv_message(self.sock)if not msg:print("连接断开，准备重连...")self.auto_reconnect()breakif msg.get('type') == 'peer_message':data = msg.get('data')+ data.get('reason', ''))self.connected = Falseelif dtype == 'SCREEN_DATA':self.show_screen(data)elif dtype == 'SCREEN_DIFF':self.show_screen_diff(data)print("recv_loop clsoe")except socket.timeout:print("接收超时，准备重连...")self.auto_reconnect()breakexcept Exception as e:print("recv error:", e)self.auto_reconnect()breakdef auto_reconnect(self):self.label.setText("断线，正在重连...")try:if self.sock:self.sock.close()except:passtime.sleep(3)  # 等待5秒再重连self.connect_remote()def request_screen(self):if self.connected and self.sock:send_message(self.sock, {'type': 'peer_message','target_device_id': self.target_id,'data': json.dumps({'type': 'REQUEST_SCREEN'}),'timestamp': int(time.time())})def show_screen(self, data):try:img_data = base64.b64decode(data['data'])img_bytes = BytesIO(img_data)from PIL import Imagepil_img = Image.open(img_bytes)w, h = pil_img.sizeself.last_screen_size = (w, h)pil_img = pil_img.convert("RGB")arr = np.array(pil_img)h, w, ch = arr.shapebytes_per_line = ch * wqimg = QImage(arr.data, w, h, bytes_per_line, QImage.Format_RGB888)pix = QPixmap.fromImage(qimg)self.label.setPixmap(pix.scaled(self.label.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation))self.label.setScaledContents(True)# 差异重组用self.full_img = arr.copy()except Exception as e:print("show_screen error:", e)def show_screen_diff(self, data):try:w, h = data.get('width'), data.get('height')block_size = data.get('block_size', 256)if self.full_img is None or self.full_img.shape[0] != h or self.full_img.shape[1] != w:self.full_img = np.zeros((h, w, 3), dtype=np.uint8)updated = Falsefor blk in data['blocks']:bx, by = blk['x'], blk['y']bw, bh = blk['w'], blk['h']img_data = base64.b64decode(blk['data'])from PIL import Imagepil_img = Image.open(BytesIO(img_data)).convert("RGB")arr = np.array(pil_img)self.full_img[by:by + bh, bx:bx + bw, :] = arrupdated = Trueif updated:self.last_screen_size = (w, h)arr = self.full_imgh, w, ch = arr.shapebytes_per_line = ch * wqimg = QImage(arr.data, w, h, bytes_per_line, QImage.Format_RGB888)pix = QPixmap.fromImage(qimg)self.label.setPixmap(pix.scaled(self.label.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation))self.showT+=1print("showT : ",self.showT)except Exception as e:print("show_screen_diff error:", e)

运行结果

三、在线协助：

如需安装运行环境或远程调试，见文章底部个人 QQ 名片，由专业技术人员远程协助！