PyQt5 – 进度条的 minimum() 方法

进度条是我们处理冗长任务时使用的小部件。它是动画的，因此用户知道任务正在进行中，它基本上是用于可视化扩展计算机操作的进程的图形控制元素，例如下载、文件传输或安装。

我们可以使用setMinimum方法设置进度条的最小值， minimum方法用于获取所需进度条的最小值。

Syntax : bar.minimum()

Argument : It takes no argument.

Return : It returns integer which refers the minimum value of progress bar.

代码 ：

# 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)
  
        # setting minimum value of progress bar to 50
        bar.setMinimum(50)
  
        # setting value to progress bar
        bar.setValue(98)
  
        # getting minimum value of progress bar
        value = bar.minimum()
  
        # creating label to print the value
        label = QLabel("minimum value = " + str(value), self)
  
        # adjusting the size of label
        label.adjustSize()
  
        # moving the label
        label.move(200, 200)
  
  
  
        # setting alignment to centre
        bar.setAlignment(Qt.AlignCenter)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：