还在为找Python做多种多样的进度条美化而发愁？即使买了收费的也不是自己想要的效果？今天小鑫给大家推荐几个常规样式使用的进度条功能，参考了官方的样例，简单的修改了下，并且给大家标注了相关注释如果大家在使用QProgressbar创建进度时不知如何添加，希望这篇博客能够对你有所帮助。
代码如下：
from random import randint
import sys
from PyQt5.QtCore import QTimer
from PyQt5.QtWidgets import QWidget, QApplication, QVBoxLayout, QProgressBarStyleSheet = '''
/*设置红色进度条*/
#RedProgressBar {text-align: center; /*进度值居中*/
}
#RedProgressBar::chunk {background-color: #F44336;
}
#GreenProgressBar {min-height: 12px;max-height: 12px;border-radius: 6px;
}
#GreenProgressBar::chunk {border-radius: 6px;background-color: #009688;
}
#BlueProgressBar {border: 2px solid #2196F3;/*边框以及边框颜色*/border-radius: 5px;background-color: #E0E0E0;
}
#BlueProgressBar::chunk {background-color: #2196F3;width: 10px; /*区块宽度*/margin: 0.5px;
}
'''class ProgressBar(QProgressBar):def __init__(self, *args, **kwargs):super(ProgressBar, self).__init__(*args, **kwargs)self.setValue(0)if self.minimum() != self.maximum():self.timer = QTimer(self, timeout=self.onTimeout)self.timer.start(randint(1, 3) * 1000)def onTimeout(self):if self.value() >= 100:self.timer.stop()self.timer.deleteLater()del self.timerreturnself.setValue(self.value() + 1)class Window(QWidget):def __init__(self, *args, **kwargs):super(Window, self).__init__(*args, **kwargs)self.resize(800, 600)layout = QVBoxLayout(self)layout.addWidget( #常规方形加载状态ProgressBar(self, minimum=0, maximum=100, objectName="RedProgressBar"))layout.addWidget( #常规方形繁忙状态ProgressBar(self, minimum=0, maximum=0, objectName="RedProgressBar"))layout.addWidget( #常规圆形加载状态ProgressBar(self, minimum=0, maximum=100, textVisible=False,objectName="GreenProgressBar"))layout.addWidget( #常规圆形繁忙状态ProgressBar(self, minimum=0, maximum=0, textVisible=False,objectName="GreenProgressBar"))layout.addWidget( #方形格子加载状态ProgressBar(self, minimum=0, maximum=100, textVisible=False,objectName="BlueProgressBar"))layout.addWidget( #方形格子繁忙状态ProgressBar(self, minimum=0, maximum=0, textVisible=False,objectName="BlueProgressBar"))if __name__ == "__main__":app = QApplication(sys.argv)app.setStyleSheet(StyleSheet)w = Window()w.show()sys.exit(app.exec_())效果如下：
引用来自PyQT5官方开源样例：https://github.com/PyQt5/PyQt/blob/master/QProgressBar/SimpleStyle.py