self.qtimer_search.start(2000)啥意思

self.avatar_timer_sign_list = QtCore.QTimer() self.avatar_timer_sign_list.timeout.connect(self.sign_list_mover_func) self.refresh_faceconfig_timer = QtCore.QTimer() self.refresh_faceconfig_timer.timeout.connect(self.refresh_resource)

这段代码是使用 PySide2/PyQt5 模块中的 QtCore 模块创建了两个 QTimer 对象，分别为 self.avatar_timer_sign_list 和 self.refresh_faceconfig_timer。其中，self.avatar_timer_sign_list 对象设置了定时器超时时...

def repeat_sign(): for i in range(7): self.sign_user_list.append({"avatar": "", "name": "", "userinfo": "", "signed": "", "time": "", "date": ""}) self.avatar_list_func() self.save_sign_pos_info() # 在需要的位置调用该函数 self.timer = QtCore.QTimer() self.timer.timeout.connect(self.face_start) self.avatar_timer_sign = QtCore.QTimer() self.avatar_timer_sign.timeout.connect(self.avatar_timer_func) self.pos_start_m = 0 self.avatar_timer_sign_list = QtCore.QTimer() self.avatar_timer_sign_list.timeout.connect(self.sign_list_mover_func) self.refresh_faceconfig_timer = QtCore.QTimer() self.refresh_faceconfig_timer.timeout.connect(self.refresh_resource) self.timer.start(20) self.avatar_timer_sign.start(2000) # 调用 repeat_sign() 函数 repeat_sign()代码什么意思

4. 创建了一个名为 "timer" 的 QTimer 对象，并将其连接到 "face_start()" 槽函数； 5. 创建了一个名为 "avatar_timer_sign" 的 QTimer 对象，并将其连接到 "avatar_timer_func()" 槽函数； 6. 设置 "pos_start_m" ...

self.qtimer = QTimer(self) self.qtimer.setSingleShot(True) self.qtimer.timeout.connect(lambda: self.statistic_label.clear())

这段代码是在 PyQt5 中创建一个 QTimer 对象，设置为单次触发模式，然后将其连接到一个 lambda 表达式上，该表达式会清空一个名为 statistic_label 的 QLabel 对象。这意味着在 QTimer 定时器到期时，会调用 lambda ...

pyqt5怎么显示class QueryThread(QThread): query_result = pyqtSignal(object) def init(self, id): super().init() self.id = id def run(self): conn = pymysql.connect(host='39.99.214.172', user='root', password='Solotion.123', database='jj_tset') cursor = conn.cursor() cursor.execute("SELECT * FROM employee_table WHERE user_id='%s'" % self.id) result = cursor.fetchone() conn.close() self.query_result.emit(result) # 发送查询结果信号 class MainWindow(QtWidgets.QMainWindow): def init(self): super().init() self.query_thread = None # 查询线程 def read_data(self): data = self.ser.readline() if data: id = data.decode().strip() if not self.query_thread: # 如果查询线程不存在，则创建并启动 self.query_thread = QueryThread(id) self.query_thread.query_result.connect(self.update_ui) self.query_thread.start() else: self.query_thread.id = id # 如果查询线程已存在，则更新查询ID QTimer.singleShot(100, self.read_data) def update_ui(self, result): if result: self.id_label.setText("员工ID：" + result[0]) self.name_label.setText("姓名：" + str(result[1])) self.six_label.setText("性别：" + result[2]) self.sfz_label.setText("身份证：" + str(result[3])) self.tel_label.setText("电话：" + result[4]) else: self.id_label.setText("员工ID：") self.name_label.setText("姓名：") self.six_label.setText("性别：") self.sfz_label.setText("身份证：") self.tel_label.setText("电话：") def closeEvent(self, event): self.ser.close() if self.query_thread: self.query_thread.quit() self.query_thread.wait()

QTimer.singleShot(100, self.read_data) def update_ui(self, result): if result: self.id_label.setText("员工ID：" + result[0]) self.name_label.setText("姓名：" + str(result[1])) self.six_label....

下面代码什么作用class MainWindow(QMainWindow, Ui_mainWindow): def init(self, parent=None): super(MainWindow, self).init(parent) self.setupUi(self) self.m_flag = False # style 1: window can be stretched # self.setWindowFlags(Qt.CustomizeWindowHint | Qt.WindowStaysOnTopHint) # style 2: window can not be stretched self.setWindowFlags(Qt.Window | Qt.FramelessWindowHint | Qt.WindowSystemMenuHint | Qt.WindowMinimizeButtonHint | Qt.WindowMaximizeButtonHint) # self.setWindowOpacity(0.85) # Transparency of window self.minButton.clicked.connect(self.showMinimized) self.maxButton.clicked.connect(self.max_or_restore) # show Maximized window # self.maxButton.animateClick(10) self.closeButton.clicked.connect(self.close) self.qtimer = QTimer(self) self.qtimer.setSingleShot(True) self.qtimer.timeout.connect(lambda: self.statistic_label.clear()) # search models automatically 自动搜索模型 self.comboBox.clear() self.pt_list = os.listdir('./pt') self.pt_list = [file for file in self.pt_list if file.endswith('.pt')] self.pt_list.sort(key=lambda x: os.path.getsize('./pt/'+x)) self.comboBox.clear() self.comboBox.addItems(self.pt_list) self.qtimer_search = QTimer(self) self.qtimer_search.timeout.connect(lambda: self.search_pt()) self.qtimer_search.start(2000) # yolov5 thread self.det_thread = DetThread() self.model_type = self.comboBox.currentText() self.det_thread.weights = "./pt/%s" % self.model_type self.det_thread.source = '0' self.det_thread.percent_length = self.progressBar.maximum() self.det_thread.send_raw.connect(lambda x: self.show_image(x, self.raw_video)) self.det_thread.send_img.connect(lambda x: self.show_image(x, self.out_video)) self.det_thread.send_statistic.connect(self.show_statistic) self.det_thread.send_msg.connect(lambda x: self.show_msg(x)) self.det_thread.send_percent.connect(lambda x: self.progressBar.setValue(x)) self.det_thread.send_fps.connect(lambda x: self.fps_label.setText(x)) self.fileButton.clicked.connect(self.open_file) self.cameraButton.clicked.connect(self.chose_cam) self.rtspButton.clicked.connect(self.chose_rtsp) self.runButton.clicked.connect(self.run_or_continue) self.stopButton.clicked.connect(self.stop) self.comboBox.currentTextChanged.connect(self.change_model) self.confSpinBox.valueChanged.connect(lambda x: self.change_val(x, 'confSpinBox')) self.confSlider.valueChanged.connect(lambda x: self.change_val(x, 'confSlider')) self.iouSpinBox.valueChanged.connect(lambda x: self.change_val(x, 'iouSpinBox')) self.iouSlider.valueChanged.connect(lambda x: self.change_val(x, 'iouSlider')) self.rateSpinBox.valueChanged.connect(lambda x: self.change_val(x, 'rateSpinBox')) self.rateSlider.valueChanged.connect(lambda x: self.change_val(x, 'rateSlider')) self.checkBox.clicked.connect(self.checkrate) self.saveCheckBox.clicked.connect(self.is_save) self.load_setting()

这段代码是一个 PyQt5 程序的主窗口类，继承了 QMainWindow 和 Ui_mainWindow 类，实现了 UI 界面和逻辑的交互。在 init 方法中，设置了窗口的一些属性，如窗口是否可拉伸、是否有最大化和最小化按钮等。...

程序运行提示QBasicTimer::stop: Failed. Possibly trying to stop from a different thread，修改程序class MyWindow(QWidget): def init(self): super().init() self.thread_list = [] self.color_photo_dir = os.path.join(os.getcwd(), "color_photos") self.depth_photo_dir = os.path.join(os.getcwd(), "depth_photos") self.image_thread = None self.saved_color_photos = 0 # 定义 saved_color_photos 属性 self.saved_depth_photos = 0 # 定义 saved_depth_photos 属性 self.init_ui() def init_ui(self): self.ui = uic.loadUi("C:/Users/wyt/Desktop/D405界面/intelrealsense1.ui") self.open_btn = self.ui.pushButton self.color_image_chose_btn = self.ui.pushButton_3 self.depth_image_chose_btn = self.ui.pushButton_4 self.open_btn.clicked.connect(self.open) self.color_image_chose_btn.clicked.connect(lambda: self.chose_dir(self.ui.lineEdit, "color")) self.depth_image_chose_btn.clicked.connect(lambda: self.chose_dir(self.ui.lineEdit_2, "depth")) def open(self): self.profile = self.pipeline.start(self.config) self.is_camera_opened = True self.label.setText('相机已打开') self.label.setStyleSheet('color:green') self.open_btn.setEnabled(False) self.close_btn.setEnabled(True) self.image_thread = ImageThread(self.pipeline, self.color_label, self.depth_label, self.interval, self.color_photo_dir, self.depth_photo_dir, self._dgl) self.image_thread.saved_color_photos_signal.connect(self.update_saved_color_photos_label) self.image_thread.saved_depth_photos_signal.connect(self.update_saved_depth_photos_label) self.image_thread.start() def chose_dir(self, line_edit, button_type): my_thread = MyThread(line_edit, button_type) my_thread.finished_signal.connect(self.update_line_edit) self.thread_list.append(my_thread) my_thread.start()

你可以尝试在调用 start() 方法时，将 QTimer 对象传递给 ImageThread 类，并在 ImageThread 中使用该定时器对象，而不是在 MyWindow 类中创建定时器对象。这样可以确保定时器在同一线程中启动和停止，...

class Emotion_MainWindow(Ui_MainWindow): def init(self, MainWindow): self.path = getcwd() self.timer_camera = QtCore.QTimer() # 定时器 self.timer_video = QtCore.QTimer() # 定时器 self.setupUi(MainWindow) self.retranslateUi(MainWindow) self.slot_init() # 槽函数设置 # 设置界面动画 gif = QMovie(':/newPrefix/icons/scan.gif') self.label_face.setMovie(gif) gif.start() self.cap = cv2.VideoCapture() # 屏幕画面对象 self.cap2 = cv2.VideoCapture() self.CAM_NUM = 0 # 摄像头标号 self.model_path = None # 模型路径 # self.__flag_work = 0

这是一个Python类，它继承自Ui_MainWindow。它有一个构造函数__init__，它的参数是MainWindow。它的成员变量包括self.path和self.timer_camera。其中，self.path是当前路径，self.timer_camera是一个计时器。

def init(self): super(Win_Main, self).init() # 设置ID self.lineEdit_2.setText(self.mc) # 登陆 self.is_login = self.login() self.init() self.timer = QtCore.QTimer() self.timer.timeout.connect(self.call) self.timer.start(3000)

在 __init__ 方法中，首先调用父类的 __init__ 方法，然后设置了一个 ID，将 mc 赋值给一个名为 self.lineEdit_2 的文本框中。接着，调用了 login 函数进行登陆操作，并将返回值赋值给了一个名为 self.is_login 的...

class MainWindow(QMainWindow): def init(self, user_id): super().init() self.user_id = user_id self.initUI() # 打开串口 self.ser = serial.Serial('COM7', 9600, timeout=1) def initUI(self): # 创建用于显示员工信息的控件 self.info_label = QLabel("员工信息", self) self.info_label.move(100, 50) self.info_label.setStyleSheet("font-size: 24px; color: black; background-color: #eee; border-radius: 10px;") self.id_label = QLabel("员工ID：", self) self.id_label.move(70, 100) self.id_label.setStyleSheet("font-size: 18px; color: black;") self.name_label = QLabel("姓名：", self) self.name_label.move(70, 150) self.name_label.setStyleSheet("font-size: 18px; color: black;") self.six_label = QLabel("性别：", self) self.six_label.move(70, 200) self.six_label.setStyleSheet("font-size: 18px; color: black;") self.sfz_label = QLabel("身份证：", self) self.sfz_label.move(70, 250) self.sfz_label.setStyleSheet("font-size: 18px; color: black;") self.tel_label = QLabel("电话：", self) self.tel_label.move(70, 300) self.tel_label.setStyleSheet("font-size: 18px; color: black;") self.setFixedSize(800, 500) self.setWindowTitle('员工信息') # 查询员工信息 def query_employee(self, id): conn = pymysql.connect(host='39.99.214.172', user='root', password='Solotion.123', database='jj_tset') cursor = conn.cursor() cursor.execute("SELECT * FROM employee_table WHERE user_id='%s'" % id) result = cursor.fetchone() conn.close() return result # 读取数据 def read_data(self): data = self.ser.readline() if data: # 解析数据 id = data.decode().strip() # 查询员工信息 result = self.query_employee(id) if result: # 更新UI界面 self.id_label.setText("员工ID：" + result[0]) self.name_label.setText("姓名：" + str(result[1])) self.six_label.setText("性别：" + result[2]) self.sfz_label.setText("身份证：" + str(result[3])) self.tel_label.setText("电话：" + result[4]) print(result[0],result[1],result[2],result[3],result[4]) else: # 显示空白信息 self.id_label.setText("员工ID：") self.name_label.setText("姓名：") self.six_label.setText("性别：") self.sfz_label.setText("身份证：") self.tel_label.setText("电话：") # 定时读取数据 QTimer.singleShot(100, self.read_data) def closeEvent(self, event): # 关闭串口 self.ser.close()把这个改为多线程

self.serial_thread.start() self.connect(self.serial_thread, SIGNAL("updateData(PyQt_PyObject)"), self.update_data) def initUI(self): # 创建用于显示员工信息的控件 self.info_label = QLabel("员工...

def query_employee(self, id): conn = pymysql.connect(host='39.99.214.172', user='root', password='Solotion.123', database='jj_tset') cursor = conn.cursor() cursor.execute("SELECT * FROM employee_table WHERE user_id='%s'" % id) result = cursor.fetchone() conn.close() return result # 读取数据 def read_data(self): data = self.ser.readline() if data: # 解析数据 id = data.decode().strip() # 查询员工信息 result = self.query_employee(id) if result: # 更新UI界面 self.id_label.setText("员工ID：" + result[0]) self.name_label.setText("姓名：" + str(result[1])) self.six_label.setText("性别：" + result[2]) self.sfz_label.setText("身份证：" + str(result[3])) self.tel_label.setText("电话：" + result[4]) else: # 显示空白信息 self.id_label.setText("员工ID：") self.name_label.setText("姓名：") self.six_label.setText("性别：") self.sfz_label.setText("身份证：") self.tel_label.setText("电话：") # 定时读取数据 QTimer.singleShot(100, self.read_data) def closeEvent(self, event): # 关闭串口 self.ser.close()怎么改为多线程来优化程序性能，将耗时的操作放在子线程中执行，避免阻塞主线程

QTimer.singleShot(100, self.read_data) def update_ui(self, result): if result: self.id_label.setText("员工ID：" + result[0]) self.name_label.setText("姓名：" + str(result[1])) self.six_label....

import sys import random from PySide2.QtCore import Qt, QTimer from PySide2.QtGui import QPen from PySide2.QtCharts import QtCharts from PySide2.QtWidgets import QApplication, QMainWindow, QGraphicsScene, QGraphicsView class RealTimeChart(QMainWindow): def init(self): super().init() # 创建QChart对象并设置标题 self.chart = QtCharts.QChart() self.chart.setTitle("Realtime Chart") # 创建QLineSeries对象并将其添加到QChart中 self.series = QtCharts.QLineSeries() self.chart.addSeries(self.series) # 创建QValueAxis对象并设置范围 self.axis_x = QtCharts.QValueAxis() self.axis_x.setRange(0, 100) self.chart.addAxis(self.axis_x, Qt.AlignBottom) # 创建QValueAxis对象并设置范围 self.axis_y = QtCharts.QValueAxis() self.axis_y.setRange(-1, 1) self.chart.addAxis(self.axis_y, Qt.AlignLeft) # 将QLineSeries与QValueAxis关联 self.series.attachAxis(self.axis_x) self.series.attachAxis(self.axis_y) # 创建QGraphicsScene对象并将QChart添加到场景中 self.view = QGraphicsView() self.scene = QGraphicsScene() self.scene.addItem(self.chart) self.view.setScene(self.scene) # 创建定时器，每隔一段时间更新曲线 self.timer = QTimer(self) self.timer.timeout.connect(self.update_chart) self.timer.start(50) # 设置窗口大小和标题 self.setCentralWidget(self.view) self.setGeometry(100, 100, 800, 600) self.setWindowTitle("Realtime Chart") def update_chart(self): # 随机生成一个数据点并添加到曲线中 x = self.series.count() y = random.uniform(-1, 1) self.series.append(x, y) # 移动坐标轴显示最近的数据 self.axis_x.setRange(x - 100, x) self.view.fitInView(self.chart, Qt.IgnoreAspectRatio) if name == 'main': app = QApplication(sys.argv) chart = RealTimeChart() chart.show() sys.exit(app.exec_())

self.timer.start(50) # 设置窗口大小和标题 self.setCentralWidget(self.view) self.setGeometry(100, 100, 800, 600) self.setWindowTitle("Realtime Chart") 3. 实现update_chart()方法，该方法用于...

import sys from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * class MainWindow(QWidget): def init(self): super().init() self.setWindowTitle("Image Slider") self.setGeometry(100, 100, 640, 480) self.image_list = ["总图", "一队", "图片"] self.image_label = QLabel(self) self.image_label.setGeometry(100, 100, 640, 480) self.image_label.setPixmap(QPixmap(self.image_list[0])) self.timer = QTimer(self) self.timer.timeout.connect(self.update_image) self.timer.start(1000) def update_image(self): current_index = self.image_list.index(self.image_label.pixmap().fileName()) next_index = (current_index + 1) % len(self.image_list) self.image_label.setPixmap(QPixmap(self.image_list[next_index])) if name == "main": app = QApplication(sys.argv) window = MainWindow() window.show() sys.exit(app.exec_())以上代码有错误吗

代码有一个小错误，应该将图片的...self.image_list = ["总图", "一队", "图片"] 改为 self.image_list = ["path/to/总图.jpg", "path/to/一队.jpg", "path/to/图片.jpg"] 其中，"path/to/"是你实际存储图片的路径。

def init(self, parent=None): super(Ui_MainWindow, self).init(parent) self.timer_video = QtCore.QTimer() self.setupUi(self) self.init_logo() self.init_slots() self.cap = cv2.VideoCapture() self.out = None self.device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu") self.half = self.device.type != 'cpu' # half precision only supported on CUDA

这是 Ui_MainWindow 类的构造函数 __init__() 的定义。在这个构造函数中，首先调用了父类 QtWidgets.QMainWindow 的构造函数，然后初始化了一些成员变量，包括 timer_video，cap，out，device 和 ...

from PyQt5.QtCore import QTimer from PyQt5.QtGui import QCursor from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QHBoxLayout, QLabel, QLineEdit, QPushButton class MouseClicker(QWidget): def init(self): super().init() # 设置窗口标题 self.setWindowTitle("鼠标连点器") # 创建UI界面 self.label_count = QLabel("点击次数：") self.edit_count = QLineEdit() self.label_interval = QLabel("间隔时间(ms)：") self.edit_interval = QLineEdit() self.btn_start = QPushButton("开始") # 设置布局 layout_count = QHBoxLayout() layout_count.addWidget(self.label_count) layout_count.addWidget(self.edit_count) layout_interval = QHBoxLayout() layout_interval.addWidget(self.label_interval) layout_interval.addWidget(self.edit_interval) layout_main = QVBoxLayout() layout_main.addLayout(layout_count) layout_main.addLayout(layout_interval) layout_main.addWidget(self.btn_start) self.setLayout(layout_main) # 连接按钮的点击事件 self.btn_start.clicked.connect(self.start_clicking) # 创建计时器 self.timer = QTimer() self.timer.timeout.connect(self.click) def start_clicking(self): # 获取点击次数和间隔时间 count = int(self.edit_count.text()) interval = int(self.edit_interval.text()) # 设置计时器的时间间隔 self.timer.setInterval(interval) # 开始计时器 self.timer.start() # 禁用开始按钮 self.btn_start.setEnabled(False) # 设置光标样式为等待 QApplication.setOverrideCursor(QCursor(QtCore.Qt.WaitCursor)) # 记录已经点击的次数 self.clicked_count = 0 def click(self): # 点击鼠标左键 QCursor().pos() QCursor().setPos(100, 100) QCursor().pos() QApplication.processEvents() # 增加已经点击的次数 self.clicked_count += 1 # 如果达到设定的点击次数，停止计时器并启用开始按钮 if self.clicked_count >= int(self.edit_count.text()): self.timer.stop() self.btn_start.setEnabled(True) # 设置光标样式为默认 QApplication.restoreOverrideCursor() if name == "main": app = QApplication([]) mouse_clicker = MouseClicker() mouse_clicker.show() app.exec_() 打包为可执行文件

要将Python程序打包为可执行文件，可以使用第三方库PyInstaller。以下是使用PyInstaller将MouseClicker程序打包为可执行文件的步骤： 1. 安装PyInstaller 使用pip命令安装PyInstaller： ...

self.qtimer_search.start(2000)啥意思

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self.avatar_timer_sign_list = QtCore.QTimer() self.avatar_timer_sign_list.timeout.connect(self.sign_list_mover_func) self.refresh_faceconfig_timer = QtCore.QTimer() self.refresh_faceconfig_timer.timeout.connect(self.refresh_resource)

self.qtimer = QTimer(self) self.qtimer.setSingleShot(True) self.qtimer.timeout.connect(lambda: self.statistic_label.clear())

def __init__(self): super(Win_Main, self).__init__() # 设置ID self.lineEdit_2.setText(self.mc) # 登陆 self.is_login = self.login() self.init() self.timer = QtCore.QTimer() self.timer.timeout.connect(self.call) self.timer.start(3000)

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def init(self): super(Win_Main, self).init() # 设置ID self.lineEdit_2.setText(self.mc) # 登陆 self.is_login = self.login() self.init() self.timer = QtCore.QTimer() self.timer.timeout.connect(self.call) self.timer.start(3000)