PyQt5 QDoubleSpinBox – 获取后缀

在本文中，我们将了解如何获得 QDoubleSpinBox 的后缀。在语言学中，后缀是放在词干之后的词缀。常见的例子是格词尾，表示名词或形容词的语法格，以及动词词尾，形成动词的变位。屈折变化后缀有时称为desinence 或语法后缀或词尾。默认情况下，双旋转框没有后缀，尽管我们可以借助 setSuffix 方法为其添加后缀。

In order to do this we will use suffix method with the double spin box object.
Syntax : dd_spin.suffix()
Argument : It takes no argument
Return : It returns string

编程需要懂一点英语

下面是实现

Python3

# 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, 500, 400)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
    # method for components
    def UiComponents(self):
 
        # creating double spin box
        d_spin = QDoubleSpinBox(self)
 
        # setting geometry to the double spin box
        d_spin.setGeometry(100, 100, 150, 40)
 
        # setting suffix
        d_spin.setSuffix(" is the Value")
 
        # step type
        step_type = QAbstractSpinBox.AdaptiveDecimalStepType
 
        # adaptive step type
        d_spin.setStepType(step_type)
 
        # creating a label
        label = QLabel("GeeksforGeeks", self)
 
        # setting geometry to the label
        label.setGeometry(100, 200, 300, 80)
 
        # making label multi line
        label.setWordWrap(True)
 
        # getting suffix
        value = d_spin.suffix()
 
        # setting text to the label
        label.setText("Suffix = " + str(value))
 
 
 
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())

输出：