内容简介：注意：player必须在QApplication实例化后创建，否则无报错不播放文章首发:
from PyQt5.QtCore import *
from PyQt5.QtMultimedia import *
from PyQt5.QtWidgets import *
app = QApplication([])
player = QMediaPlayer()
player.setMedia(QMediaContent(QUrl.fromLocalFile('/mnt/d/music/test/金娃娃-彩虹糖的梦.wma')))
player.play()
app.exec()
注意：player必须在QApplication实例化后创建，否则无报错不播放
PyQt5多线程
import sys
import time
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
class BigWork(QThread):
signal = pyqtSignal(type(None))
def run(self) -> None:
print("Big Working...")
time.sleep(3)
print("Big done.")
self.signal.emit(None)
def terminate(self) -> None:
print("Terminating...")
super().terminate()
print("Terminated.")
class Window(QWidget):
root_layout: QVBoxLayout
button1: QPushButton
button2: QPushButton
button3: QPushButton
work: QThread
def __init__(self) -> None:
super().__init__()
self.setup_layout()
self.work = BigWork()
self.work.signal.connect(lambda x: print("Signal received:", x))
def setup_layout(self):
self.button1 = QPushButton("Start", parent=self)
self.button2 = QPushButton("Stop", parent=self)
self.button3 = QPushButton("About Qt", parent=self)
self.root_layout = QVBoxLayout()
self.root_layout.addWidget(self.button1)
self.root_layout.addWidget(self.button2)
self.root_layout.addWidget(self.button3)
self.button1.clicked.connect(lambda: self.work.start())
self.button2.clicked.connect(lambda: self.work.terminate())
self.button3.clicked.connect(lambda: QMessageBox.aboutQt(self))
self.resize(600, 400)
self.setLayout(self.root_layout)
def main():
app = QApplication(sys.argv)
window = Window()
window.show()
app.exec()
if __name__ == '__main__':
main()
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