PyQt5 如何改变进程条的颜色

在这篇文章中，我们将看到如何改变进程条的颜色。默认情况下，进程条的颜色是绿色的，尽管PyQt5允许我们使用样式表来改变颜色。为了做到这一点，我们将使用setStyleSheet方法并编辑进程条的CSS块文件。

语法:

bar.setStyleSheet("QProgressBar::chunk "
                  "{"
                    "background-color: red;"
                  "}")

执行的动作： 它将改变进程栏的颜色。

# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
 
 
class Window(QMainWindow):
 
 
    def __init__(self):
        super().__init__()
 
        # setting title
        self.setWindowTitle("Python ")
 
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
    # method for widgets
    def UiComponents(self):
 
        # creating progress bar
        bar = QProgressBar(self)
 
        # setting geometry to progress bar
        bar.setGeometry(200, 150, 200, 30)
 
        # set value to progress bar
        bar.setValue(70)
 
        # changing the color of process bar
        bar.setStyleSheet("QProgressBar::chunk "
                          "{"
                          "background-color: red;"
                          "}")
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())

输出 :

PyQt5 如何改变进程条的颜色