PyQt5 QSpinbox – 访问它的行编辑对象

在本文中，我们将看到如何访问旋转框的行编辑对象，行编辑是 PyQt5 中的小部件，用于显示文本并接受输入文本。默认情况下，旋转框有自己的行编辑对象，尽管我们可以在setLineEdit方法的帮助下添加自己的行编辑对象。

In order to do this we use lineEdit method

Syntax : spin_box.lineEdit()

Argument : It takes no argument

Return: It returns line edit object

下面是实现

# 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 spin box
        self.spin = QSpinBox(self)
  
        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 250, 40)
  
        # setting prefix to spin
        self.spin.setPrefix("Prefix ")
  
        # setting suffix to spin
        self.spin.setSuffix(" Suffix")
  
        # get the line edit object of spin box
        line = self.spin.lineEdit()
  
        # creating a label
        label = QLabel(self)
  
        # setting text to the label
        label.setText(str(line))
  
        # adjust the size of the label
        label.adjustSize()
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：