70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2018年3月9日
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@author: Irony
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@site: https://pyqt5.com, https://github.com/892768447
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@email: 892768447@qq.com
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@file: InheritQThread
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@description: 继承QThread
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"""
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from PyQt5.QtCore import QThread, pyqtSignal
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from PyQt5.QtWidgets import QWidget, QVBoxLayout, QProgressBar, QPushButton
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__Author__ = 'By: Irony\nQQ: 892768447\nEmail: 892768447@qq.com'
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__Copyright__ = 'Copyright (c) 2018 Irony'
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__Version__ = 1.0
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class Worker(QThread):
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valueChanged = pyqtSignal(int) # 值变化信号
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def run(self):
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print('thread id', int(QThread.currentThreadId()))
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for i in range(1, 101):
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print('value', i)
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self.valueChanged.emit(i)
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QThread.sleep(1)
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class Window(QWidget):
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def __init__(self, *args, **kwargs):
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super(Window, self).__init__(*args, **kwargs)
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layout = QVBoxLayout(self)
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self.progressBar = QProgressBar(self)
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self.progressBar.setRange(0, 100)
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layout.addWidget(self.progressBar)
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layout.addWidget(QPushButton('开启线程', self, clicked=self.onStart))
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# 当前线程id
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print('main id', int(QThread.currentThreadId()))
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# 子线程
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self._thread = Worker(self)
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self._thread.finished.connect(self._thread.deleteLater)
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self._thread.valueChanged.connect(self.progressBar.setValue)
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def onStart(self):
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print('main id', int(QThread.currentThreadId()))
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self._thread.start() # 启动线程
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def closeEvent(self, event):
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if self._thread.isRunning():
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self._thread.quit()
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# 强制
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# self._thread.terminate()
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del self._thread
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super(Window, self).closeEvent(event)
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if __name__ == '__main__':
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import sys
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from PyQt5.QtWidgets import QApplication
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app = QApplication(sys.argv)
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w = Window()
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w.show()
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sys.exit(app.exec_())
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