pyqt 窗口的调用

关于Pyqt窗口调用的格式

正常设计两个ui文件
正常Pyuic转成.py

在唯一的 run.py 函数里这样写即可实现窗口调用

import ...
from Timer2 import Ui_Form  # Timer2为主ui对于py文件的名字
from TimerSetup import Ui_Form as UISetup  # Timer2为被调用窗口ui对于py文件的名字注意as,避免均为Ui_Form


class MyPyQT_Form(QtWidgets.QWidget,Ui_Form):     #主窗口的事件
    # 下面这个方法自动执行，相当于初始化,但是可以自定义一个初始化函数 initUI()
    def __init__(self):
        super(MyPyQT_Form,self).__init__()
        self.setupUi(self)
        self.initUI()   
    def initUI(self):
        pass
    def btn_click(self):                      ## 调用次窗口
        self.mySetup = winSetup()
        self.mySetup.show()
        self.close
    def ...


class winSetup(QtWidgets.QWidget, UISetup):
    def  __init__ (self):
        super(winSetup, self).__init__()
        self.setupUi(self)
        self.initUI()

    def initUI(self):
        pass
    def ...

      
      
if __name__ == '__main__':  # 四句话：继承-实例化-显示-退出

    app = QtWidgets.QApplication(sys.argv)
    main_form = MyPyQT_Form()  #实例化,类的名字,可更改等号前面名字 MyPyQT_Form()继承自Ui_Form
    main_form.show()
    sys.exit(app.exec_())

转载：PyQt5 Demo 窗口跳转

原作者：愤怒的软绵绵

转载仅是表达感谢与备份，学习建议查看文章出处

Demo 窗口跳转

实现了一个简单的登录跳转页面。

登录主窗口（.ui转为.py）：untitled.py

# untitled.py
 
from PyQt5 import QtCore, QtGui, QtWidgets
 
class Ui_Dialog(object):
    def setupUi(self, Dialog):
        Dialog.setObjectName("Dialog")
        Dialog.resize(399, 322)
        self.label_state = QtWidgets.QLabel(Dialog)
        self.label_state.setGeometry(QtCore.QRect(20, 290, 191, 16))
        self.label_state.setObjectName("label_state")
        self.btn_ok = QtWidgets.QPushButton(Dialog)
        self.btn_ok.setGeometry(QtCore.QRect(80, 230, 75, 23))
        self.btn_ok.setObjectName("btn_ok")
        self.btn_cancel = QtWidgets.QPushButton(Dialog)
        self.btn_cancel.setGeometry(QtCore.QRect(230, 230, 75, 23))
        self.btn_cancel.setObjectName("btn_cancel")
        self.lineEdit_username = QtWidgets.QLineEdit(Dialog)
        self.lineEdit_username.setGeometry(QtCore.QRect(150, 50, 171, 20))
        self.lineEdit_username.setObjectName("lineEdit_username")
        self.label_username = QtWidgets.QLabel(Dialog)
        self.label_username.setGeometry(QtCore.QRect(50, 50, 61, 16))
        self.label_username.setObjectName("label_username")
        self.lineEdit_password = QtWidgets.QLineEdit(Dialog)
        self.lineEdit_password.setGeometry(QtCore.QRect(150, 90, 171, 20))
        self.lineEdit_password.setInputMethodHints(QtCore.Qt.ImhHiddenText|QtCore.Qt.ImhNoAutoUppercase|QtCore.Qt.ImhNoPredictiveText|QtCore.Qt.ImhSensitiveData)
        self.lineEdit_password.setEchoMode(QtWidgets.QLineEdit.Password)
        self.lineEdit_password.setObjectName("lineEdit_password")
        self.label_password = QtWidgets.QLabel(Dialog)
        self.label_password.setGeometry(QtCore.QRect(50, 90, 61, 16))
        self.label_password.setObjectName("label_password")
 
        self.retranslateUi(Dialog)
        self.btn_cancel.clicked.connect(Dialog.close)
        QtCore.QMetaObject.connectSlotsByName(Dialog)
 
    def retranslateUi(self, Dialog):
        _translate = QtCore.QCoreApplication.translate
        Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
        self.label_state.setText(_translate("Dialog", "TextLabel"))
        self.btn_ok.setText(_translate("Dialog", "ok"))
        self.btn_cancel.setText(_translate("Dialog", "cancel"))
        self.label_username.setText(_translate("Dialog", "User name"))
        self.label_password.setText(_translate("Dialog", "Password"))

登录成功提示窗口（.ui转为.py）：information_ok.py

# information_ok.py
 
from PyQt5 import QtCore, QtGui, QtWidgets
 
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(208, 122)
        self.label = QtWidgets.QLabel(Form)
        self.label.setGeometry(QtCore.QRect(10, 10, 181, 71))
        self.label.setAlignment(QtCore.Qt.AlignCenter)
        self.label.setObjectName("label")
        self.buttonBox = QtWidgets.QDialogButtonBox(Form)
        self.buttonBox.setGeometry(QtCore.QRect(0, 70, 171, 32))
        self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
        self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)
        self.buttonBox.setObjectName("buttonBox")
 
        self.retranslateUi(Form)
        self.buttonBox.clicked['QAbstractButton*'].connect(Form.close)
        QtCore.QMetaObject.connectSlotsByName(Form)
 
    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.label.setText(_translate("Form", "登录成功！"))
 

登录失败提示窗口（.ui转为.py）：information_no.py

# information_no.py
 
from PyQt5 import QtCore, QtGui, QtWidgets
 
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(208, 122)
        self.label = QtWidgets.QLabel(Form)
        self.label.setGeometry(QtCore.QRect(10, 10, 181, 71))
        self.label.setAlignment(QtCore.Qt.AlignCenter)
        self.label.setObjectName("label")
        self.buttonBox = QtWidgets.QDialogButtonBox(Form)
        self.buttonBox.setGeometry(QtCore.QRect(0, 70, 171, 32))
        self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
        self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)
        self.buttonBox.setObjectName("buttonBox")
 
        self.retranslateUi(Form)
        self.buttonBox.clicked['QAbstractButton*'].connect(Form.close)
        QtCore.QMetaObject.connectSlotsByName(Form)
 
    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.label.setText(_translate("Form", "登录失败！"))

主函数：run.py

# run.py
 
from PyQt5 import QtWidgets
from untitled import Ui_Dialog
from information_ok import Ui_Form as form_ok
from information_no import Ui_Form as form_no
 
class mywindow(QtWidgets.QDialog, Ui_Dialog):
    def  __init__ (self):
        super(mywindow, self).__init__()
        self.setupUi(self)
        self.btn_ok.clicked.connect(self.printState)
        
    def printState(self):
        #显示状态
#        if self.lineEdit_username.text == "1" and self.lineEdit_password.text == "1":
        if self.lineEdit_username.text().strip() == "1" and self.lineEdit_password.text() == "1":
            words = "Login successful!"
            self.w1 = window_ok()
            self.w1.show()
            self.close()
        else:
            words = "Login faild!"
            self.w2 = window_no()
            self.w2.show()
            self.close()
        self.label_state.setText(words)
 
class window_ok(QtWidgets.QWidget, form_ok):
    def  __init__ (self):
        super(window_ok, self).__init__()
        self.setupUi(self)
        
class window_no(QtWidgets.QWidget, form_no):
    def  __init__ (self):
        super(window_no, self).__init__()
        self.setupUi(self)
 
if __name__=="__main__":
    import sys
    app=QtWidgets.QApplication(sys.argv)
    ui = mywindow()    
    ui.show()
#    input("input something")
    sys.exit(app.exec_())

注意

1. 在主函数中记得实例化子窗体，否则无法实现跳转；

2. 窗体跳转的调用需要用self，否则出现闪退.

#窗体跳转调用时需加self
 
self.w1 = window_ok()
self.w1.show()

看到有大佬说，Dialog之间无法实现跳转，亲测是可以的，可能是实例化或者调用的时候没有加self。

输入密码的模式设置：echoMode = Password

运行界面

 存在的问题

在Spyder运行时，总是一次成功一次失败，不知道这是为啥，求教各位大佬~ 

如果是运行.exe就没有这个问题，好奇怪！

运行不成功的提示为：Kernel died, restarting