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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 = 0
length_bytes = sock.recv(4)
if not length_bytes:
return None
length = int.from_bytes(length_bytes, 'big')
data = b''
while len(data) < length:
chunk = sock.recv(min(4096, length - len(data)))
if not chunk:
return None
data += chunk
numT2 += 1
print("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)
break
def 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")
return
self.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()
break
if msg.get('type') == 'peer_message':
data = msg.get('data')
+ data.get('reason', ''))
self.connected = False
elif 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()
break
except Exception as e:
print("recv error:", e)
self.auto_reconnect()
break
def auto_reconnect(self):
self.label.setText("断线，正在重连...")
try:
if self.sock:
self.sock.close()
except:
pass
time.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 Image
pil_img = Image.open(img_bytes)
w, h = pil_img.size
self.last_screen_size = (w, h)
pil_img = pil_img.convert("RGB")
arr = np.array(pil_img)
h, w, ch = arr.shape
bytes_per_line = ch * w
qimg = 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 = False
for 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 Image
pil_img = Image.open(BytesIO(img_data)).convert("RGB")
arr = np.array(pil_img)
self.full_img[by:by + bh, bx:bx + bw, :] = arr
updated = True
if updated:
self.last_screen_size = (w, h)
arr = self.full_img
h, w, ch = arr.shape
bytes_per_line = ch * w
qimg = 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+=1
print("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！
1）远程安装运行环境，代码调试
2）Visual Studio, Qt, C++, Python编程语言入门指导
3）界面美化
4）软件制作
5）云服务器申请
6）网站制作
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