PyQt5基础 QT Designer 信号与槽 点击按钮关闭窗口

•        Python : 3.8.13
•          OS : Windows 21H1
•       Conda : 4.12.0
•     PyCharm : 2022.1 (Community Edition)

信号与槽

• 多对多

qt designer

• UI界面

• 信号与槽

先把下面的复选框勾上，然后点左边的，最后点右边。顺序要对，否则会发现右边缺东西或者不可选。

• 把常用的快捷键背下来，省时间。

代码

/********************************************************************************
** Form generated from reading UI file 'untitledg10128.ui'
**
** Created by: Qt User Interface Compiler version 5.9.7
**
** WARNING! All changes made in this file will be lost when recompiling UI file!
********************************************************************************/

#ifndef UNTITLEDG10128_H
#define UNTITLEDG10128_H

#include <QtCore/QVariant>
#include <QtWidgets/QAction>
#include <QtWidgets/QApplication>
#include <QtWidgets/QButtonGroup>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QMainWindow>
#include <QtWidgets/QMenuBar>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QRadioButton>
#include <QtWidgets/QStatusBar>
#include <QtWidgets/QWidget>

QT_BEGIN_NAMESPACE

class Ui_MainWindow
{
public:
    QWidget *centralwidget;
    QPushButton *pushButton;
    QPushButton *pushButton_2;
    QRadioButton *radioButton;
    QPushButton *pushButton_3;
    QRadioButton *radioButton_2;
    QRadioButton *radioButton_3;
    QMenuBar *menubar;
    QStatusBar *statusbar;

    void setupUi(QMainWindow *MainWindow)
    {
        if (MainWindow->objectName().isEmpty())
            MainWindow->setObjectName(QStringLiteral("MainWindow"));
        MainWindow->resize(545, 390);
        centralwidget = new QWidget(MainWindow);
        centralwidget->setObjectName(QStringLiteral("centralwidget"));
        pushButton = new QPushButton(centralwidget);
        pushButton->setObjectName(QStringLiteral("pushButton"));
        pushButton->setGeometry(QRect(270, 90, 75, 23));
        pushButton_2 = new QPushButton(centralwidget);
        pushButton_2->setObjectName(QStringLiteral("pushButton_2"));
        pushButton_2->setGeometry(QRect(440, 90, 75, 23));
        radioButton = new QRadioButton(centralwidget);
        radioButton->setObjectName(QStringLiteral("radioButton"));
        radioButton->setGeometry(QRect(150, 90, 89, 16));
        pushButton_3 = new QPushButton(centralwidget);
        pushButton_3->setObjectName(QStringLiteral("pushButton_3"));
        pushButton_3->setGeometry(QRect(30, 210, 75, 23));
        radioButton_2 = new QRadioButton(centralwidget);
        radioButton_2->setObjectName(QStringLiteral("radioButton_2"));
        radioButton_2->setGeometry(QRect(140, 190, 89, 16));
        radioButton_3 = new QRadioButton(centralwidget);
        radioButton_3->setObjectName(QStringLiteral("radioButton_3"));
        radioButton_3->setGeometry(QRect(140, 240, 89, 16));
        MainWindow->setCentralWidget(centralwidget);
        menubar = new QMenuBar(MainWindow);
        menubar->setObjectName(QStringLiteral("menubar"));
        menubar->setGeometry(QRect(0, 0, 545, 23));
        MainWindow->setMenuBar(menubar);
        statusbar = new QStatusBar(MainWindow);
        statusbar->setObjectName(QStringLiteral("statusbar"));
        MainWindow->setStatusBar(statusbar);

        retranslateUi(MainWindow);
        QObject::connect(pushButton, SIGNAL(clicked()), MainWindow, SLOT(close()));
        QObject::connect(pushButton_2, SIGNAL(clicked()), MainWindow, SLOT(close()));
        QObject::connect(radioButton, SIGNAL(clicked()), pushButton, SLOT(click()));
        QObject::connect(pushButton_3, SIGNAL(clicked()), radioButton_2, SLOT(toggle()));
        QObject::connect(pushButton_3, SIGNAL(clicked()), radioButton_3, SLOT(hide()));

        QMetaObject::connectSlotsByName(MainWindow);
    } // setupUi

    void retranslateUi(QMainWindow *MainWindow)
    {
        MainWindow->setWindowTitle(QApplication::translate("MainWindow", "MainWindow", Q_NULLPTR));
        pushButton->setText(QApplication::translate("MainWindow", "PushButton", Q_NULLPTR));
        pushButton_2->setText(QApplication::translate("MainWindow", "PushButton", Q_NULLPTR));
        radioButton->setText(QApplication::translate("MainWindow", "RadioButton", Q_NULLPTR));
        pushButton_3->setText(QApplication::translate("MainWindow", "PushButton", Q_NULLPTR));
        radioButton_2->setText(QApplication::translate("MainWindow", "RadioButton", Q_NULLPTR));
        radioButton_3->setText(QApplication::translate("MainWindow", "RadioButton", Q_NULLPTR));
    } // retranslateUi

};

namespace Ui {
    class MainWindow: public Ui_MainWindow {};
} // namespace Ui

QT_END_NAMESPACE

#endif // UNTITLEDG10128_H

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

# Form implementation generated from reading ui file 'untitled.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.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(545, 390)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(270, 90, 75, 23))
        self.pushButton.setObjectName("pushButton")
        self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_2.setGeometry(QtCore.QRect(440, 90, 75, 23))
        self.pushButton_2.setObjectName("pushButton_2")
        self.radioButton = QtWidgets.QRadioButton(self.centralwidget)
        self.radioButton.setGeometry(QtCore.QRect(150, 90, 89, 16))
        self.radioButton.setObjectName("radioButton")
        self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_3.setGeometry(QtCore.QRect(30, 210, 75, 23))
        self.pushButton_3.setObjectName("pushButton_3")
        self.radioButton_2 = QtWidgets.QRadioButton(self.centralwidget)
        self.radioButton_2.setGeometry(QtCore.QRect(140, 190, 89, 16))
        self.radioButton_2.setObjectName("radioButton_2")
        self.radioButton_3 = QtWidgets.QRadioButton(self.centralwidget)
        self.radioButton_3.setGeometry(QtCore.QRect(140, 240, 89, 16))
        self.radioButton_3.setObjectName("radioButton_3")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 545, 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)
        self.pushButton.clicked.connect(MainWindow.close)
        self.pushButton_2.clicked.connect(MainWindow.close)
        self.radioButton.clicked.connect(self.pushButton.click)
        self.pushButton_3.clicked.connect(self.radioButton_2.toggle)
        self.pushButton_3.clicked.connect(self.radioButton_3.hide)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "PushButton"))
        self.pushButton_2.setText(_translate("MainWindow", "PushButton"))
        self.radioButton.setText(_translate("MainWindow", "RadioButton"))
        self.pushButton_3.setText(_translate("MainWindow", "PushButton"))
        self.radioButton_2.setText(_translate("MainWindow", "RadioButton"))
        self.radioButton_3.setText(_translate("MainWindow", "RadioButton"))

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