PyQt5 – 进度条的多色边框

在这篇文章中，我们将看到如何为进度条的条形图创建多色边框。条是进度条的一部分，表示完整性。

下面是进度条的边框与进度条的多色条的表示方法。

PyQt5 - 进度条的多色边框
为此，我们必须在CSS样式表中改变进度条的每个边框的颜色，下面是边框样式表的代码。

QProgressBar
{
border : 1px solid black;
}
QProgressBar::chunk
{
border :3px solid ;
border-top-color : red; 
border-left-color :pink;
border-right-color :green;
border-bottom-color : blue;
}

以下是实施情况。

# 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 background color to window
        # self.setStyleSheet("background-color : yellow")
  
        # 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, 100, 200, 30)
  
        # setting the value
        value = 70
        bar.setValue(value)
  
        # setting alignment to center
        bar.setAlignment(Qt.AlignCenter)
  
        # setting border to progress bar
        # and setting multi colored border to the bar and color
        bar.setStyleSheet("QProgressBar "
                          "{"
                          "border : 1px solid black;"
                          "}"
                          "QProgressBar::chunk"
                          "{"
                          "background-color : yellow;"
                          "border :3px solid;"
                          "border-top-color : red;" 
                          "border-left-color :pink;"
                          "border-right-color :green;"
                          "border-bottom-color : blue;"
                          "}"
                          )
  
  
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())