PyQt5 QSpinBox – 获得文本的权重

在这篇文章中，我们将看到如何获得旋转框文本的重量。Font-weight是用来设置字体的重量（粗体）的。权重的值越大，文本就越粗。我们可以在setWeight方法的帮助下改变字体重量。

为了做到这一点，我们在旋转框的QFont对象中使用weight方法。

语法： font.weight()

参数： 它不需要参数

返回： 它返回整数

下面是实现方法

# 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")

        # getting font of the spin box
        font = self.spin.font()

        # setting weight to the font
        font.setWeight(75)

        # reassigning this font to the spin box
        self.spin.setFont(font)

        # creating a label
        label = QLabel(self)

        # setting geometry to the label
        label.setGeometry(100, 200, 300, 60)

        # getting weight of the font
        check = font.weight()

        # setting text to the label
        label.setText("Weight: " + str(check))


# create pyqt5 app
App = QApplication(sys.argv)

# create the instance of our Window
window = Window()

# start the app
sys.exit(App.exec())

输出：