我正在從視頻制作一個簡單的音頻下載器，但是每當我單擊下載按鈕時，gui 都會停止，直到下載完成。我以為我可以使用線程來處理這些事情，但幾乎有數百種方法可以實現這一點，但我不知道我應該選擇哪一種，這就是為什么我很困惑然后想問你的原因。我的代碼在這里：import sysimport threadingimport pafyfrom PyQt5.QtWidgets import QApplication, QWidget, QPushButtonfrom PyQt5.QtGui import QIconfrom PyQt5.QtCore import pyqtSlotclass App(QWidget): def __init__(self): super().__init__() self.title = 'PyQt5 button - pythonspot.com' self.left = 100 self.top = 100 self.width = 320 self.height = 200 self.initUI() def initUI(self): self.setWindowTitle(self.title) self.setGeometry(self.left, self.top, self.width, self.height) button = QPushButton('Coffee shop radio', self) button.move(10,10) button.clicked.connect(self.on_click) self.show() def on_click(self): url = "https://www.youtube.com/watch?v=IcvruhYk0po" video = pafy.new(url) bestaudio = video.getbestaudio() bestaudio.download()if __name__ == '__main__': app = QApplication([]) ex = App() sys.exit(app.exec_())稍微修改了代碼，它可以工作了，謝謝大家。import sysimport threadingimport pafyfrom time import sleepfrom PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QLineEditfrom PyQt5.QtGui import QIconfrom PyQt5.QtCore import pyqtSlotclass App(QWidget): threads = [] def __init__(self): super().__init__() self.title = 'YouDio' self.left = 100 self.top = 100 self.width = 280 self.height = 90 self.initUI() def initUI(self): self.setWindowTitle(self.title) self.setGeometry(self.left, self.top, self.width, self.height) button = QPushButton('DOWNLOAD', self) button.move(10,25) button.clicked.connect(self.on_click) self.line = QLineEdit(self) self.line.move(120,27) self.show() def on_click(self): self.t = threading.Thread(target=self.threaded) self.t.start()
1 回答
繁華開滿天機
TA貢獻1816條經驗 獲得超4個贊
from threading import Thread
import sys
import threading
import pafy
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot
def download_me():
url = "https://www.youtube.com/watch?v=IcvruhYk0po"
video = pafy.new(url)
bestaudio = video.getbestaudio()
bestaudio.download()
class App(QWidget):
def __init__(self):
super().__init__()
self.title = 'PyQt5 button - pythonspot.com'
self.left = 100
self.top = 100
self.width = 320
self.height = 200
self.initUI()
def initUI(self):
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
button = QPushButton('Coffee shop radio', self)
button.move(10,10)
button.clicked.connect(self.on_click)
self.show()
def on_click(self):
t = Thread(target=download_me)
t.daemon = True
t.start()
if __name__ == '__main__':
app = QApplication([])
ex = App()
sys.exit(app.exec_())
嘗試這個！
實際上下載任務是同步完成的，所以你的ardard會阻塞直到下載任務結束……你必須把這部分代碼放在一個守護線程中。
注意：我不知道 python 線程是否可以與 Qt 混合，所以你應該使用好的 Lib 但想法保持不變
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