pyqt5使用按钮进行界面的跳转方法
简介
进行按钮进行界面的跳转，我这里面我介绍两种，一种是没有使用Qtdesigner的代码，另一种是使用Qtdesigner的代码
代码1
importsys
fromPyQt5.QtWidgetsimportQMainWindow,QPushButton,QApplication
classFirst(QMainWindow):
def__init__(self):
super().__init__()
self.initUI()
definitUI(self):
self.btn=QPushButton("Button",self)
self.btn.move(30,50)
self.setGeometry(300,300,500,500)
self.setWindowTitle('Eventsender')
self.show()
classSecond(QMainWindow):
def__init__(self):
super().__init__()
self.initUI()
definitUI(self):
self.setGeometry(300,300,290,150)
self.setWindowTitle('Getsender')
if__name__=='__main__':
app=QApplication(sys.argv)
a=First()
b=Second()
a.show()
a.btn.clicked.connect(b.show)
sys.exit(app.exec_())
代码2
下面的代码使用了Qtdesigner的代码
fromPyQt5importQtCore,QtGui,QtWidgets
importsys
fromPyQt5.QtWidgetsimportQApplication,QMainWindow,QWidget,QLabel,\
QPushButton,QLineEdit,QMenuBar,QStatusBar
fromPyQt5.QtCoreimport*
classFirstWindow(QWidget):
def__init__(self,parent=None):
#super这个用法是调用父类的构造函数
#parent=None表示默认没有父Widget，如果指定父亲Widget，则调用之
super(FirstWindow,self).__init__(parent)
self.setGeometry(500,500,500,500)
self.setWindowTitle('显示')
self.btn=QPushButton(self)
self.btn.setText('标定')
self.btn.move(150,50)
#下面的一部分是Qtdesigner的代码
classUi_MainWindow(object):
defsetupUi(self,MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(624,479)
self.centralwidget=QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label=QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(190,130,51,31))
self.label.setObjectName("label")
self.pushButton=QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(330,260,75,23))
self.pushButton.setObjectName("pushButton")
self.lineEdit=QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit.setGeometry(QtCore.QRect(280,130,151,21))
self.lineEdit.setObjectName("lineEdit")
self.label_2=QtWidgets.QLabel(self.centralwidget)
self.label_2.setGeometry(QtCore.QRect(190,180,51,31))
self.label_2.setObjectName("label_2")
self.lineEdit_2=QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit_2.setGeometry(QtCore.QRect(280,190,151,21))
self.lineEdit_2.setObjectName("lineEdit_2")
self.pushButton_2=QtWidgets.QPushButton(self.centralwidget)
self.pushButton_2.setGeometry(QtCore.QRect(200,260,75,23))
self.pushButton_2.setObjectName("pushButton_2")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar=QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0,0,624,23))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar=QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
defretranslateUi(self,MainWindow):
_translate=QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow","MainWindow"))
self.label.setText(_translate("MainWindow","长"))
self.pushButton.setText(_translate("MainWindow","确定"))
self.label_2.setText(_translate("MainWindow","宽"))
self.pushButton_2.setText(_translate("MainWindow","取消"))
if__name__=="__main__":
app=QApplication(sys.argv)
MainWindow=QMainWindow()
ui=Ui_MainWindow()
ui.setupUi(MainWindow)
ex=FirstWindow()
ex.btn.clicked.connect(MainWindow.show)
ex.show()
sys.exit(app.exec_())
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