本範例描述物件導向的來龍去脈，更用近來火紅的 Pokemon 進行解說

MainWindow.py

import sys
from PyQt5.QtWidgets import QMainWindow, QApplication, QGridLayout, QLabel
from Eve import Eve
from ui.ui_mainwindow import Ui_MainWindow
class MainWindow(QMainWindow, Ui_MainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setupUi(self)
        self.btn.clicked.connect(self.btn_click)
        self.layout=QGridLayout(self.frame)
        self.x=0
        self.y=0
    def btn_click(self):
        eve=Eve()
        self.layout.addWidget(eve,self.y, self.x)
        self.x=(self.x+1)%5
        if self.x==0:self.y+=1
if __name__=='__main__':
    app=QApplication(sys.argv)
    frame=MainWindow()
    frame.showMaximized()
    app.exec()

Eve.py

import random
from PyQt5.QtCore import QThread, pyqtSignal
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QLabel
class EveThread(QThread):
    callback= pyqtSignal(int)
    def __init__(self, delay=100, parent=None):
        super().__init__(parent)
        self.runFlag = True
        self.index=0
        self.delay=delay
    def __del__(self):
        self.runFlag=False
        self.wait()
    def run(self):
        while self.runFlag:
            self.callback.emit(self.index)
            self.index=(self.index+1)%36
            QThread.msleep(self.delay)
class Eve(QLabel):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setPixmap(QPixmap('eve/frame_01.png'))
        self.pix=[]
        for i in range(1, 37):
            s=str(i).zfill(2)
            self.pix.append(QPixmap(f'eve/frame_{s}.png'))
        self.thread=EveThread(random.randint(10,100))
        self.thread.callback.connect(self.refresh)
        self.thread.start()
    def refresh(self, index):
        self.setPixmap(self.pix[index])

範例圖片下載