import sys
from PyQt5.QtCore import Qt, QTimer
from PyQt5.QtGui import QPainter, QColor
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget
 
class FloatingWindow(QMainWindow):
    def __init__(self):
        super().__init__()
 
        # 設(shè)置無邊框和透明度
        self.setWindowFlags(Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint)
        self.setAttribute(Qt.WA_TranslucentBackground)
 
        # 獲取屏幕大小
        screen = QApplication.primaryScreen()
        screen_rect = screen.availableGeometry()
        screen_width, screen_height = screen_rect.width(), screen_rect.height()
 
        # 設(shè)置窗口大小為整個(gè)屏幕
        self.setGeometry(0, 0, screen_width, screen_height)
 
        # 定時(shí)器用于更新窗口內(nèi)容
        self.timer = QTimer(self)
        self.timer.timeout.connect(self.update_content)
        self.timer.start(100)  # 每100毫秒更新一次內(nèi)容
 
    def update_content(self):
        # 更新窗口內(nèi)容（繪制網(wǎng)格）
        self.update()
 
    def paintEvent(self, event):
        # 在窗口上繪制網(wǎng)格
        painter = QPainter(self)
        painter.setRenderHint(QPainter.Antialiasing, True)
 
        grid_size = 20
        grid_color = QColor(0, 0, 0, 150)  # 透明黑色
 
        # 繪制橫向網(wǎng)格線
        for y in range(0, self.height(), grid_size):
            painter.drawLine(0, y, self.width(), y)
 
        # 繪制縱向網(wǎng)格線
        for x in range(0, self.width(), grid_size):
            painter.drawLine(x, 0, x, self.height())
 
if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = FloatingWindow()
    window.show()
    sys.exit(app.exec_())