用 Python PyQT5 掷骰子

Question

如何设置带有随机数的图像我的意思是如果出现 1 则将加载 1dot 图像。请给我一个解决方案。它会生成数字并加载图像，但我不知道如何为每次按下滚动时创建逻辑它会根据随机数 1 到 6 更改图像。

import random
import sys
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import (QApplication,QMainWindow, QPushButton,QTextEdit,QLabel,QFileDialog)
class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.setFixedSize(400,400)
        self.setWindowTitle("Simple Dice roller")
        
        self.button = QPushButton('Roll', self) #button connection
        self.button.clicked.connect(self.clickmethod) #methodclicked button  connection
        self.button.clicked.connect(self.imageview) # buttonimageview connection
        self.msg =  QTextEdit(self) #for showing text while clicking on button in box
        
        self.msg.resize(100,32)
        self.msg.move(100,100)
        
        self.button.resize(100,32)
        self.button.move(50,50)
        self.imageview()
       
    def clickmethod(self):
        ran = str(random.randint(1,6))
        self.msg.setText(ran)

    def imageview(self):
        label = QLabel(self)
        label.move(100, 110)
        label.setFixedSize(500, 300)
        pixmap = QPixmap(r'S:\Dice sumilator\diceimage\1dot.jpg')
        #pixmap = QPixmap(r'S:\Dice sumilator\diceimage\2dots.jpg')
        label.setPixmap(pixmap)
                        
if __name__ == "__main__":    
    app = QApplication(sys.argv)
    Diceroll = MainWindow()
    Diceroll.show()
    sys.exit(app.exec_()) 

Answer 1

_{他们在the other answer 中指出的内容是不正确的，在这种情况下，QGraphicsPixmapItem 和 QLabel 具有相同的容量，因为它们都用于显示 QPixmap。何时难度或其他被错误记录的事情在这里没有区别。}

如果要随机选择图像，则必须创建图像列表并使用 random.choices 随机获取图像并更新 QLabel 显示的 QPixmap：

class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.setFixedSize(400, 400)
        self.setWindowTitle("Simple Dice roller")

        self.button = QPushButton("Roll", self)
        self.button.clicked.connect(self.clickmethod)
        self.msg = QTextEdit(self)

        self.msg.resize(100, 32)
        self.msg.move(100, 100)

        self.button.resize(100, 32)
        self.button.move(50, 50)
        self.label = QLabel(self)
        self.label.move(100, 110)
        self.label.setFixedSize(500, 300)

    def clickmethod(self):
        images = [
            r"S:\Dice sumilator\diceimage\1dot.jpg",
            r"S:\Dice sumilator\diceimage\2dots.jpg",
        ]
        random_image = random.choices(images)
        pixmap = QPixmap(random_image)
        self.label.setPixmap(pixmap)

Answer 2

这是使用 QGraphicScene Widget 进行这项工作的一种廉价/简单的方法。 它创建一个区域来显示图像并根据 if 语句对其进行更新。

更新：根据我的同行删除了错误的陈述。

import random
import sys
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import (QApplication, QMainWindow, QPushButton, QTextEdit, QGraphicsScene, QGraphicsPixmapItem, QGraphicsView)


class MainWindow(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.setFixedSize(400, 400)
        self.setWindowTitle("Simple Dice roller")

        self.button = QPushButton('Roll', self)  # button connection
        self.button.clicked.connect(self.clickmethod)  # methodclicked button  connection
        self.msg = QTextEdit(self)  # for showing text while clicking on button in box

        self.msg.resize(100, 32)
        self.msg.move(100, 100)

        self.button.resize(100, 32)
        self.button.move(50, 50)

        self.graphicsView = QGraphicsView(self)

        self.scene = QGraphicsScene()
        self.pixmap = QGraphicsPixmapItem()
        self.scene.addItem(self.pixmap)
        self.graphicsView.setScene(self.scene)
        self.graphicsView.resize(100, 100)
        self.graphicsView.move(200, 200)

    def clickmethod(self):
        ran = str(random.randint(1, 6))
        self.msg.setText(ran)
        if ran == '1':
            print(ran)
            img = QPixmap('dice1.png')
            self.pixmap.setPixmap(img)
        elif ran == '2':
            print(ran)
            img = QPixmap('dice2.png')
            self.pixmap.setPixmap(img)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    Diceroll = MainWindow()
    Diceroll.show()
    sys.exit(app.exec_())