pyqt5窗口未响应

Question

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'D:\Desktop\login.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.
import time
from PyQt5.QtWidgets import QMessageBox
from PyQt5 import QtCore, QtGui, QtWidgets
import sys
from PyQt5.QtWidgets import QApplication
import pymysql
import main


class Login(QtWidgets.QMainWindow):
    def __init__(self):
        QtWidgets.QMainWindow.__init__(self)
        self.setupUi(self)
        self.retranslateUi(self)

    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 295)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.tabWidget = QtWidgets.QTabWidget(self.centralwidget)
        self.tabWidget.setGeometry(QtCore.QRect(0, 0, 791, 271))
        self.tabWidget.setObjectName("tabWidget")
        self.tab = QtWidgets.QWidget()
        self.tab.setObjectName("tab")
        self.label_username = QtWidgets.QLabel(self.tab)
        self.label_username.setGeometry(QtCore.QRect(10, 40, 51, 16))
        self.label_username.setObjectName("label_username")
        self.label_password = QtWidgets.QLabel(self.tab)
        self.label_password.setGeometry(QtCore.QRect(10, 80, 61, 16))
        self.label_password.setObjectName("label_password")
        self.label_phone = QtWidgets.QLabel(self.tab)
        self.label_phone.setGeometry(QtCore.QRect(10, 120, 51, 16))
        self.label_phone.setObjectName("label_phone")
        self.label_Email = QtWidgets.QLabel(self.tab)
        self.label_Email.setGeometry(QtCore.QRect(10, 150, 31, 16))
        self.label_Email.setObjectName("label_Email")
        self.label_root_password = QtWidgets.QLabel(self.tab)
        self.label_root_password.setGeometry(QtCore.QRect(10, 210, 61, 21))
        self.label_root_password.setObjectName("label_root_password")

        self.lineEdit_username = QtWidgets.QLineEdit(self.tab)
        self.lineEdit_username.setGeometry(QtCore.QRect(150, 40, 113, 21))
        self.lineEdit_username.setObjectName("lineEdit_username")
        self.label_W_Q = QtWidgets.QLabel(self.tab)
        self.label_W_Q.setGeometry(QtCore.QRect(10, 180, 81, 16))
        self.label_W_Q.setObjectName("label_W_Q")
        self.lineEdit_password = QtWidgets.QLineEdit(self.tab)
        self.lineEdit_password.setGeometry(QtCore.QRect(150, 80, 113, 21))
        self.lineEdit_password.setObjectName("lineEdit_password")
        self.lineEdit_Email = QtWidgets.QLineEdit(self.tab)
        self.lineEdit_Email.setGeometry(QtCore.QRect(150, 150, 113, 21))
        self.lineEdit_Email.setObjectName("lineEdit_Email")
        self.lineEdit_phone = QtWidgets.QLineEdit(self.tab)
        self.lineEdit_phone.setGeometry(QtCore.QRect(150, 120, 113, 21))
        self.lineEdit_phone.setObjectName("lineEdit_phone")
        self.lineEdit_root_password = QtWidgets.QLineEdit(self.tab)
        self.lineEdit_root_password.setGeometry(QtCore.QRect(150, 220, 113, 21))
        self.lineEdit_root_password.setObjectName("lineEdit_root_password")
        self.lineEdit_W_Q = QtWidgets.QLineEdit(self.tab)
        self.lineEdit_W_Q.setGeometry(QtCore.QRect(150, 180, 113, 21))
        self.lineEdit_W_Q.setObjectName("lineEdit_W_Q")

        self.label_name = QtWidgets.QLabel(self.tab)
        self.label_name.setGeometry(QtCore.QRect(300, 50, 31, 16))
        self.label_name.setObjectName("label_name")
        self.lineEdit_name = QtWidgets.QLineEdit(self.tab)
        self.lineEdit_name.setGeometry(QtCore.QRect(350, 50, 113, 21))
        self.lineEdit_name.setObjectName("lineEdit_name")
        self.label_signature = QtWidgets.QLabel(self.tab)
        self.label_signature.setGeometry(QtCore.QRect(300, 90, 72, 15))
        self.label_signature.setObjectName("label_signature")
        self.lineEdit_signature = QtWidgets.QLineEdit(self.tab)
        self.lineEdit_signature.setGeometry(QtCore.QRect(300, 120, 341, 121))
        self.lineEdit_signature.setObjectName("lineEdit_signature")
        self.pushButton_register = QtWidgets.QPushButton(self.tab)
        self.pushButton_register.setGeometry(QtCore.QRect(670, 100, 93, 28))
        self.pushButton_register.setObjectName("pushButton_register")
        self.tabWidget.addTab(self.tab, "")

        self.tab_2 = QtWidgets.QWidget()
        self.tab_2.setObjectName("tab_2")
        self.label_user_name = QtWidgets.QLabel(self.tab_2)
        self.label_user_name.setGeometry(QtCore.QRect(340, 20, 51, 16))
        self.label_user_name.setObjectName("label_user_name")

        self.lineEdit_9 = QtWidgets.QLineEdit(self.tab_2)
        self.lineEdit_9.setGeometry(QtCore.QRect(310, 60, 113, 21))
        self.lineEdit_9.setObjectName("lineEdit_9")
        self.label_password_2 = QtWidgets.QLabel(self.tab_2)
        self.label_password_2.setGeometry(QtCore.QRect(350, 100, 31, 16))
        self.label_password_2.setObjectName("label_password_2")
        self.lineEdit_10 = QtWidgets.QLineEdit(self.tab_2)
        self.lineEdit_10.setGeometry(QtCore.QRect(310, 130, 113, 21))
        self.lineEdit_10.setObjectName("lineEdit_10")
        self.pushButton_login = QtWidgets.QPushButton(self.tab_2)
        self.pushButton_login.setGeometry(QtCore.QRect(320, 190, 93, 28))
        self.pushButton_login.setObjectName("pushButton_login")
        self.tabWidget.addTab(self.tab_2, "")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        self.tabWidget.setCurrentIndex(0)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.label_username.setText(_translate("MainWindow", "用户名"))
        self.label_password.setText(_translate("MainWindow", "用户密码"))
        self.label_phone.setText(_translate("MainWindow", "手机号"))
        self.label_Email.setText(_translate("MainWindow", "邮箱"))
        self.label_root_password.setText(_translate("MainWindow", "管理密码"))
        self.label_W_Q.setText(_translate("MainWindow", "weixin/QQ"))
        self.label_name.setText(_translate("MainWindow", "昵称"))
        self.label_signature.setText(_translate("MainWindow", "个性签名"))
        self.pushButton_register.setText(_translate("MainWindow", "注册"))
        self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate("MainWindow", "注册"))
        self.label_user_name.setText(_translate("MainWindow", "用户名"))
        self.label_password_2.setText(_translate("MainWindow", "密码"))
        self.pushButton_login.setText(_translate("MainWindow", "登录"))
        self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), _translate("MainWindow", "登录"))


class register_progress(QtWidgets.QMainWindow):
    def __init__(self):
        QtWidgets.QMainWindow.__init__(self)
        self.setupUi(self)
        self.retranslateUi(self)

    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(748, 104)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.progressBar = QtWidgets.QProgressBar(self.centralwidget)
        self.progressBar.setGeometry(QtCore.QRect(10, 25, 721, 23))
        self.progressBar.setProperty("value", 24)
        self.progressBar.setObjectName("progressBar")
        self.label = QtWidgets.QLabel(self.centralwidget)
        self.label.setGeometry(QtCore.QRect(10, 70, 711, 20))
        self.label.setObjectName("label")
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.label.setText(_translate("MainWindow", "正在进行的操作"))


def register_TF(username, password, Email, phone, root_password, W_Q):
    # 用户名判断
    username_code = True
    password_code = True
    Email_code = True
    phone_code = True
    root_password_code = True
    W_Q_code = True
    username_element_list = (
        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
        'W',
        'X', 'Y', 'Z',
        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
        'w',
        'x', 'y', 'z',
                  '1', '2', '3', '4', '5', '6', '7', '8', '9', '_')
    while username_code:
        if len(username) > 20:
            QMessageBox(QMessageBox.Critical, '用户名不合法', '用户名长度不能大于20个字符').exec_()
            username_code = False
        if len(username) == 0:
            QMessageBox(QMessageBox.Critical, '用户名不合法', '用户名不能为空').exec_()
            username_code = False
        for i in username:
            if i not in username_element_list:
                QMessageBox(QMessageBox.Critical, '用户名不合法', '用户名只能包括大写字母、小写字母、数字、下划线_').exec_()
                username_code = False
    return username_code, password_code, Email_code, phone_code, root_password_code, W_Q_code


def register():
    global ex
    username = ex.lineEdit_username.text()
    password = ex.lineEdit_password.text()
    Email = ex.lineEdit_Email.text()
    phone = ex.lineEdit_phone.text()
    root_password = ex.lineEdit_root_password.text()
    W_Q = ex.lineEdit_W_Q.text()
    # print(username,password,Email,phone,root_password,W_Q)
    username_code, password_code, Email_code, phone_code, root_password_code, W_Q_code = register_TF(username, password, Email, phone, root_password, W_Q)
    if username_code and password_code and Email_code and phone_code and root_password_code and W_Q_code:
        print('合法')

def login():
    global ex
    user_name = ex.lineEdit_9.text()
    password = ex.lineEdit_10.text()
    # print(user_name,password)


app = QApplication(sys.argv)
ex = Login()
ex.pushButton_register.clicked.connect(register)
ex.pushButton_login.clicked.connect(login)
ex.show()
sys.exit(app.exec_())

以上是一个很正常的登录注册半成品(原创，只做了用户名验证)但是当用户名通过验证的时候返回，然后就未响应了

有没有人可以找出原因并给出解决办法。

Answer 1

不知道你这个问题是否已经解决, 如果还没有解决的话:

• 建议你看下这篇博客👉 ：PyQt5 多窗口应用中遇到的问题解决（父窗口与子窗口）

如果你已经解决了该问题, 非常希望你能够分享一下解决方案, 写成博客, 将相关链接放在评论区, 以帮助更多的人 ^-^