font = QtGui.QFont() font.setPointSize(12) self.ui.textEdit.setFont(font)用pyside2如何改

在PySide2中，您可以使用以下代码来设置文本编辑器的字体大小：

font = QtGui.QFont()
font.setPointSize(12)
self.ui.textEdit.setFont(font)

请注意，PySide2的QtGui模块与PyQt5的QtGui模块具有相同的API，因此这些代码应该可以在两个库中通用。

相关问题

import FreeCAD import FreeCADGui from PySide import QtGui, QtCore Gui.activateWorkbench("PartWorkbench") FreeCAD.newDocument() class SphereDialog(QtGui.QDialog): def __init__(self): super().__init__() self.setWindowTitle("Create Sphere") self.create_widgets() def create_widgets(self): layout = QtGui.QVBoxLayout() # Radius widget radius_label = QtGui.QLabel("Radius:") self.radius_spinbox = QtGui.QDoubleSpinBox() self.radius_spinbox.setMinimum(0.1) self.radius_spinbox.setMaximum(1000.0) self.radius_spinbox.setValue(10.0) layout.addWidget(radius_label) layout.addWidget(self.radius_spinbox) # Opacity widget opacity_label = QtGui.QLabel("Opacity:") self.opacity_slider = QtGui.QSlider(QtCore.Qt.Horizontal) self.opacity_slider.setMinimum(0) self.opacity_slider.setMaximum(100) self.opacity_slider.setValue(50) layout.addWidget(opacity_label) layout.addWidget(self.opacity_slider) # Create button create_button = QtGui.QPushButton("Create") create_button.clicked.connect(self.create_sphere) layout.addWidget(create_button) self.setLayout(layout) def create_sphere(self): # Get sphere parameters radius = self.radius_spinbox.value() opacity = float(self.opacity_slider.value() / 100) # Create sphere sphere = FreeCAD.ActiveDocument.addObject("Part::Sphere", "Sphere") sphere.Radius = radius sphere.ViewObject.Transparency = int(round(opacity * 100)) # Show in 3D view sphere.ViewObject.Visibility = True FreeCADGui.SendMsgToActiveView("ViewFit") FreeCADGui.Selection.clearSelection() FreeCADGui.Selection.addSelection(sphere) FreeCADGui.SendMsgToActiveView("ViewFit") # Close dialog self.close() dialog = SphereDialog() dialog.show()代码中执行没有球体出现，请修改代码

根据您提供的代码，我发现在 `create_sphere` 函数中，创建球体后没有将其添加到文档中。修改代码如下：

import FreeCAD
import FreeCADGui
from PySide import QtGui, QtCore

Gui.activateWorkbench("PartWorkbench")
FreeCAD.newDocument()

class SphereDialog(QtGui.QDialog):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Create Sphere")
        self.create_widgets()

    def create_widgets(self):
        layout = QtGui.QVBoxLayout()

        # Radius widget
        radius_label = QtGui.QLabel("Radius:")
        self.radius_spinbox = QtGui.QDoubleSpinBox()
        self.radius_spinbox.setMinimum(0.1)
        self.radius_spinbox.setMaximum(1000.0)
        self.radius_spinbox.setValue(10.0)
        layout.addWidget(radius_label)
        layout.addWidget(self.radius_spinbox)

        # Opacity widget
        opacity_label = QtGui.QLabel("Opacity:")
        self.opacity_slider = QtGui.QSlider(QtCore.Qt.Horizontal)
        self.opacity_slider.setMinimum(0)
        self.opacity_slider.setMaximum(100)
        self.opacity_slider.setValue(50)
        layout.addWidget(opacity_label)
        layout.addWidget(self.opacity_slider)

        # Create button
        create_button = QtGui.QPushButton("Create")
        create_button.clicked.connect(self.create_sphere)
        layout.addWidget(create_button)

        self.setLayout(layout)

    def create_sphere(self):
        # Get sphere parameters
        radius = self.radius_spinbox.value()
        opacity = float(self.opacity_slider.value() / 100)

        # Create sphere
        sphere = FreeCAD.ActiveDocument.addObject("Part::Sphere", "Sphere")
        sphere.Radius = radius
        sphere.ViewObject.Transparency = int(round(opacity * 100))
        FreeCAD.ActiveDocument.recompute()  # 添加这行代码，重新计算文档

        # Show in 3D view
        sphere.ViewObject.Visibility = True
        FreeCADGui.SendMsgToActiveView("ViewFit")
        FreeCADGui.Selection.clearSelection()
        FreeCADGui.Selection.addSelection(sphere)
        FreeCADGui.SendMsgToActiveView("ViewFit")

        # Close dialog
        self.close()

dialog = SphereDialog()
dialog.show()

在 `create_sphere` 函数中，我添加了 `FreeCAD.ActiveDocument.recompute()`，这会重新计算文档，使得添加的球体能够在 3D 视图中显示。

from PyQt5 import QtCore, QtGui, QtWidgets from show1 import Ui_Form1 from show2 import Ui_Form2 from show3 import Ui_Form3 class Ui_Form(object): def setupUi(self, Form): Form.setObjectName("Form") Form.resize(400, 300) self.pushButton = QtWidgets.QPushButton(Form) self.pushButton.setGeometry(QtCore.QRect(90, 60, 191, 51)) font = QtGui.QFont() font.setPointSize(9) self.pushButton.setFont(font) self.pushButton.setObjectName("pushButton") self.pushButton_2 = QtWidgets.QPushButton(Form) self.pushButton_2.setGeometry(QtCore.QRect(90, 110, 191, 51)) self.pushButton_2.setObjectName("pushButton_2") self.pushButton_3 = QtWidgets.QPushButton(Form) self.pushButton_3.setGeometry(QtCore.QRect(90, 160, 191, 51)) self.pushButton_3.setObjectName("pushButton_3") self.retranslateUi(Form) QtCore.QMetaObject.connectSlotsByName(Form) def retranslateUi(self, Form): _translate = QtCore.QCoreApplication.translate Form.setWindowTitle(_translate("Form", "Form")) self.pushButton.setText(_translate("Form", "无人机群显示")) self.pushButton_2.setText(_translate("Form", "无人机群数据分析展示")) self.pushButton_3.setText(_translate("Form", "无人机群飞行轨迹展示")) class MainWindow(QtWidgets.QMainWindow): def __init__(self): super().__init__() self.ui = Ui_Form() self.ui.setupUi(self) self.ui.pushButton.clicked.connect(self.showForm1) self.ui.pushButton_2.clicked.connect(self.showForm2) self.ui.pushButton_3.clicked.connect(self.showForm3) def showForm1(self): self.form1 = QtWidgets.QWidget() self.ui1 = Ui_Form1() self.ui1.setupUi(self.form1) self.form1.show() def showForm2(self): self.form2 = QtWidgets.QWidget() self.ui2 = Ui_Form2() self.ui2.setupUi(self.form2) self.form2.show() def showForm3(self): self.form3 = QtWidgets.QWidget() self.ui3 = Ui

_Form3()
self.ui3.setupUi(self.form3)
self.form3.show()

这段代码是一个基于PyQt5的GUI程序，使用了三个不同的UI文件（show1.py、show2.py、show3.py）来展示不同的功能界面。在UI类中，setupUi()方法用于设置UI的各个元素，retranslateUi()方法用于设置UI的翻译文本。在MainWindow类中，通过连接按钮的clicked信号，来分别展示不同的UI界面。showForm1()、showForm2()、showForm3()方法分别用于展示不同的UI界面，其中每个界面都有对应的UI类来设置UI元素。