Python——GUI编程（python programming）
2024-09-03 15:07:57
import sys
from math import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import * class Form(QDialog):
def __init__(self,parent=None):
super().__init__(parent) layout = QVBoxLayout() self.setLayout(layout) def updateUi(self):
pass app = QApplication(sys.argv)
form = Form()
form.show()
app.exec_()
QLabel
import sys
from math import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import * class Form(QDialog):
def __init__(self,parent=None):
super().__init__(parent) #标签
self.aLabel = QLabel(self)
self.aLabel.setText("hhhhhhh") #数字框
self.mySpinBox = QDoubleSpinBox(self)
self.mySpinBox.setValue(100)
self.mySpinBox.setRange(1,1000) #滑动条
self.s = QSlider() #可编辑文本
self.lineedit = QLineEdit("请输入我爱帅帅:") #不可编辑文本框
self.browser = QTextBrowser()
self.browser.append("你改不了吧，嘿嘿") #选单
self.listWidget = QListWidget(self)
self.listWidget.addItems(["巧克力","抹茶","冰淇淋"]) #下拉选单
self.comboBox = QComboBox(self)
itemdata = ['学习python','学习c++','学习java']
self.comboBox.addItems(itemdata) #按钮
self.okButton = QPushButton(self)
self.okButton.setText("我佛了...") layout = QVBoxLayout()
layout.addWidget(self.aLabel)
layout.addWidget(self.mySpinBox)
layout.addWidget(self.s)
layout.addWidget(self.lineedit)
layout.addWidget(self.browser)
layout.addWidget(self.listWidget)
layout.addWidget(self.comboBox)
layout.addWidget(self.okButton) self.setLayout(layout) def updateUi(self):
pass app = QApplication(sys.argv)
form = Form()
form.show()
app.exec_()
set_pen
import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import * class PenPropertiesDlg(QDialog):
def __init__(self, parent=None):
super(PenPropertiesDlg, self).__init__(parent) widthLabel = QLabel("&Width:")
self.widthSpinBox = QSpinBox()
widthLabel.setBuddy(self.widthSpinBox) self.widthSpinBox.setAlignment(Qt.AlignRight|Qt.AlignVCenter)
self.widthSpinBox.setRange(0, 24)
self.beveledCheckBox = QCheckBox("&Beveled edges") styleLabel = QLabel("&Style:")
self.styleComboBox = QComboBox()
styleLabel.setBuddy(self.styleComboBox)
self.styleComboBox.addItems(["Solid", "Dashed", "Dotted", "DashDotted", "DashDotDotted"]) okButton = QPushButton("&OK")
cancelButton = QPushButton("Cancel") buttonLayout = QHBoxLayout()
buttonLayout.addStretch()
buttonLayout.addWidget(okButton)
buttonLayout.addWidget(cancelButton)
layout = QGridLayout()
layout.addWidget(widthLabel, 0, 0)
layout.addWidget(self.widthSpinBox, 0, 1)
layout.addWidget(self.beveledCheckBox, 0, 2)
layout.addWidget(styleLabel, 1, 0)
layout.addWidget(self.styleComboBox, 1, 1, 1, 2)
layout.addLayout(buttonLayout, 2, 0, 1, 3)
self.setLayout(layout)
self.setWindowTitle("Pen Properties") okButton.clicked.connect(self.accept)
cancelButton.clicked.connect(self.reject) class Form(QDialog):
def __init__(self, parent=None):
super(Form, self).__init__(parent)
self.width = 1
self.beveled = False
self.style = "Solid" penButton = QPushButton("Set Pen")
self.label = QLabel("The Pen has not been set")
self.label.setTextFormat(Qt.RichText)
layout = QVBoxLayout()
layout.addWidget(penButton)
layout.addWidget(self.label)
self.setLayout(layout)
self.setWindowTitle("Pen")
penButton.clicked.connect(self.setPenProperties)
self.updateData() def updateData(self):
bevel = ""
if self.beveled:
bevel = "<br>Beveled"
self.label.setText("Width = {}<br>Style = {}{}".format(self.width, self.style, bevel)) def setPenProperties(self):
dialog = PenPropertiesDlg(self)
dialog.widthSpinBox.setValue(self.width)
dialog.beveledCheckBox.setChecked(self.beveled)
dialog.styleComboBox.setCurrentIndex(
dialog.styleComboBox.findText(self.style))
if dialog.exec_():
self.width = dialog.widthSpinBox.value()
self.beveled = dialog.beveledCheckBox.isChecked()
self.style = dialog.styleComboBox.currentText()
self.updateData() app = QApplication(sys.argv)
form = Form()
form.resize(400, 200)
form.show()
app.exec_()
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