todo

數位數字

底下的程式, 可以由滑桿的拉動, 改變數位數字的值, 蠻科技的

import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import (QWidget, QLCDNumber, QSlider,QVBoxLayout, QApplication)
class Example(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()
    def initUI(self):
        lcd = QLCDNumber(self)
        sld = QSlider(Qt.Horizontal, self)
        vbox = QVBoxLayout()
        vbox.addWidget(lcd)
        vbox.addWidget(sld)
        self.setLayout(vbox)
        sld.valueChanged.connect(lcd.display)
        self.setGeometry(300, 300, 250, 150)
        self.setWindowTitle('Signal and slot')
        self.show()
if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    app.exec()

todo