PyQt5 QSpinBox – 使用ID查找孩子
在这篇文章中,我们将看到如何使用孩子的ID找到旋转盒子的孩子,我们可以使用孩子的对象的winId方法来获得孩子的ID。旋转盒子是父部件,它有像行编辑部件和那些向上和向下的按钮的子部件。
为了做到这一点,我们使用查找方法
语法: spin_box.find(id)
参数: 它以子对象的id作为参数
返回: 它返回子对象
以下是实现方法
# 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 range to the spin box
self.spin.setRange(0, 999999)
# setting prefix to spin
self.spin.setPrefix("Prefix ")
# setting suffix to spin
self.spin.setSuffix(" Suffix")
# ensuring spin box is polished
i_d = self.spin.lineEdit().winId()
# getting child using ID
child = self.spin.find(i_d)
# creating a label
label = QLabel(self)
# making it multi line
label.setWordWrap(True)
# setting its geometry
label.setGeometry(100, 200, 200, 60)
# setting text to the label
label.setText(str(child))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出: