我想你可能是错的。你希望你在一个单独的线程中做的工作，所以它不会冻结应用程序。但是你也希望能够更新进度条。您可以通过使用QThread创建工人类来实现此目的。 QThreads能够发出信号，您的用户界面可以听取并采取适当的行动。
首先，我们来创建你的工人类。
#Inherit from QThread
class Worker(QtCore.QThread):
#This is the signal that will be emitted during the processing.
#By including int as an argument, it lets the signal know to expect
#an integer argument when emitting.
updateProgress = QtCore.Signal(int)
#You can do any extra things in this init you need, but for this example
#nothing else needs to be done expect call the super's init
def __init__(self):
QtCore.QThread.__init__(self)
#A QThread is run by calling it's start() function, which calls this run()
#function in it's own "thread".
def run(self):
#Notice this is the same thing you were doing in your progress() function
for i in range(1, 101):
#Emit the signal so it can be received on the UI side.
self.updateProgress.emit(i)
time.sleep(0.1)
所以，现在你有一个工人班，是时候利用它了。您需要在Ui_Dialog类中创建一个新功能来处理发射的信号。
def setProgress(self, progress):
self.progressBar.setValue(progress)
虽然你在那里，你可以删除你的progress()函数。
在retranslateUi()你会想从
self.pushButton.clicked.connect(self.progress)
更新按钮事件处理程序
self.pushButton.clicked.connect(self.worker.start)
最后，在setupUI()功能，您将需要创建你的工人类的一个实例并将它的信号连接到你的setProgress()功能。
在此之前：
self.retranslateUi(Dialog)
补充一点：
self.worker = Worker()
self.worker.updateProgress.connect(self.setProgress)
下面是最终代码：
from PySide import QtCore, QtGui
import time
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(400, 133)
self.progressBar = QtGui.QProgressBar(Dialog)
self.progressBar.setGeometry(QtCore.QRect(20, 10, 361, 23))
self.progressBar.setProperty("value", 24)
self.progressBar.setObjectName("progressBar")
self.pushButton = QtGui.QPushButton(Dialog)
self.pushButton.setGeometry(QtCore.QRect(20, 40, 361, 61))
self.pushButton.setObjectName("pushButton")
self.worker = Worker()
self.worker.updateProgress.connect(self.setProgress)
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
self.progressBar.minimum = 1
self.progressBar.maximum = 100
def retranslateUi(self, Dialog):
Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "Dialog", None, QtGui.QApplication.UnicodeUTF8))
self.pushButton.setText(QtGui.QApplication.translate("Dialog", "PushButton", None, QtGui.QApplication.UnicodeUTF8))
self.progressBar.setValue(0)
self.pushButton.clicked.connect(self.worker.start)
def setProgress(self, progress):
self.progressBar.setValue(progress)
#Inherit from QThread
class Worker(QtCore.QThread):
#This is the signal that will be emitted during the processing.
#By including int as an argument, it lets the signal know to expect
#an integer argument when emitting.
updateProgress = QtCore.Signal(int)
#You can do any extra things in this init you need, but for this example
#nothing else needs to be done expect call the super's init
def __init__(self):
QtCore.QThread.__init__(self)
#A QThread is run by calling it's start() function, which calls this run()
#function in it's own "thread".
def run(self):
#Notice this is the same thing you were doing in your progress() function
for i in range(1, 101):
#Emit the signal so it can be received on the UI side.
self.updateProgress.emit(i)
time.sleep(0.1)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
Dialog = QtGui.QDialog()
ui = Ui_Dialog()
ui.setupUi(Dialog)
Dialog.show()
sys.exit(app.exec_())
QThreads有一些内置自动发射的信号。你可以看到它们，关于QThreads的更多信息in the documentation
是的，这就是我想要的样子，谢谢！ – Benny