Python-Pyqt5按钮连接槽函数方法记录

1、首先运用Qt Designer工具，设计出一个简单的UI界面：
实例UI文件：test_button.ui 文件

 MainWindow
 
  
   
    0
    0
    384
    350
   
  
  
   MainWindow
  
  
   
    
     
    
    
     
      
       测试按钮-1
      
     
    
    
     
      
       测试按钮-2
      
     
    
   
  
  
   
    
     0
     0
     384
     26
    
   
  
  
 
 
 

2、利用Pyuic,将ui文件转化为py文件。（如果不会，建议先在Pycharm中安装相关工具，CSDN搜索关于【PyCharm安装PyQt5及其工具】的 资料即可）
test_button.py 文件

# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'test_button.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(384, 350)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
        self.gridLayout.setObjectName("gridLayout")
        self.textBrowser = QtWidgets.QTextBrowser(self.centralwidget)
        self.textBrowser.setObjectName("textBrowser")
        self.gridLayout.addWidget(self.textBrowser, 2, 0, 1, 1)
        self.pushButton1 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton1.setObjectName("pushButton1")
        self.gridLayout.addWidget(self.pushButton1, 0, 0, 1, 1)
        self.pushButton2 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton2.setObjectName("pushButton2")
        self.gridLayout.addWidget(self.pushButton2, 1, 0, 1, 1)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 384, 26))
        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)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton1.setText(_translate("MainWindow", "测试按钮-1"))
        self.pushButton2.setText(_translate("MainWindow", "测试按钮-2"))

3、编写主程序，显示界面，点击功能按钮，界面打印相关信息：
test_main.py 文件

from  test_button import Ui_MainWindow
import sys
from PyQt5.QtGui import QIcon  # 用于添加图标
from PyQt5.QtWidgets import QWidget,QMainWindow,QApplication
from PyQt5.QtCore import pyqtSlot

class Test_window(QMainWindow,Ui_MainWindow):  # 继承至界面文件的主窗口类
    
    def __init__(self):
        super().__init__()  # 使用超类，继承父类的属性及方法
        self.setupUi(self)  # 构造窗体界面
        self.setWindowIcon(QIcon("./img/result.png"))
        self.setWindowTitle("Test_button")  # 设置窗体主体
        self.initUI()  # 构造功能函数
    
    def initUI(self):
        #此处添加功能连接函数
        self.pushButton1.clicked.connect(self.bofang_video)  #自定义按钮连接自定义槽函数
        # self.pushButton1.pressed.connect()   #不同的按钮点击方式
        # self.pushButton1.released.connect()
    
    @pyqtSlot()
    def on_pushButton2_clicked(self): #利用QT自带槽函数直接连接按钮
        self.textBrowser.append("点击按钮2！")
        self.textBrowser.append("点击按钮2！ ") #设置字体颜色
        self.textBrowser.append("======================")
        
    def bofang_video(self):
        print("123")
        self.textBrowser.append("点击按钮1！")
        self.textBrowser.append("点击按钮1！ ") #设置字体颜色
        self.textBrowser.append("======================")

if __name__ == "__main__":
    app = QApplication(sys.argv)
    ui2 = Test_window()
    ui2.show()
    sys.exit(app.exec_())

界面展示：
点击测试按钮1，打印对应消息，点击测试按钮2，打印对应消息。