from PyQt5.QtCore import QObject , pyqtSignal

class CustSignal(QObject):

    #声明无参数的信号

    signal1 = pyqtSignal()

    #声明带一个int类型参数的信号

    signal2 = pyqtSignal(int)

    #声明带int和str类型参数的信号

    signal3 = pyqtSignal(int,str)

    #声明带一个列表类型参数的信号

    signal4 = pyqtSignal(list)

    #声明带一个字典类型参数的信号

    signal5 = pyqtSignal(dict)

    #声明一个多重载版本的信号，包括带int和str类型参数的信号和带str类型参数的信号

    signal6 = pyqtSignal([int,str], [str])

    def __init__(self,parent=None):

        super(CustSignal,self).__init__(parent)

        #将信号连接到指定槽函数

        self.signal1.connect(self.signalCall1)

        self.signal2.connect(self.signalCall2)

        self.signal3.connect(self.signalCall3)

        self.signal4.connect(self.signalCall4)

        self.signal5.connect(self.signalCall5)

        self.signal6[int,str].connect(self.signalCall6)

        self.signal6[str].connect(self.signalCall6OverLoad)

        #发射信号

        self.signal1.emit()

        self.signal2.emit(1)

        self.signal3.emit(1,"text")

        self.signal4.emit([1,2,3,4])

        self.signal5.emit({"name":"wangwu","age":""})

        self.signal6[int,str].emit(1,"text")

        self.signal6[str].emit("text")

    def signalCall1(self):

        print("signal1 emit")

    def signalCall2(self,val):

        print("signal2 emit,value:",val)

    def signalCall3(self,val,text):

        print("signal3 emit,value:",val,text)

    def signalCall4(self,val):

        print("signal4 emit,value:",val)

    def signalCall5(self,val):

        print("signal5 emit,value:",val)

    def signalCall6(self,val,text):

        print("signal6 emit,value:",val,text)

    def signalCall6OverLoad(self,val):

        print("signal6 overload emit,value:",val)

if __name__ == '__main__':

    custSignal = CustSignal()

signal1 emit

signal2 emit,value: 1

signal3 emit,value: 1 text

signal4 emit,value: [1, 2, 3, 4]

signal5 emit,value: {'name': 'wangwu', 'age': ''}

signal6 emit,value: 1 text

signal6 overload emit,value: text

from PyQt5.QtWidgets import (QApplication,QWidget,QPushButton,QTextBrowser,QGridLayout)

from PyQt5.QtCore import Qt,pyqtSignal

import sys

class Example(QWidget):

    # 声明无参数的信号

    signal1 = pyqtSignal()

    # 声明带一个int类型参数的信号

    signal2 = pyqtSignal(int)

    # 声明带int和str类型参数的信号

    signal3 = pyqtSignal(int, str)

    # 声明带一个列表类型参数的信号

    signal4 = pyqtSignal(list)

    # 声明带一个字典类型参数的信号

    signal5 = pyqtSignal(dict)

    # 声明一个多重载版本的信号，包括带int和str类型参数的信号和带str类型参数的信号

    signal6 = pyqtSignal([int, str], [str])

    def __init__(self):

        super(Example, self).__init__()

        self.initUI()

    def initUI(self):

        self.setGeometry(300,300,450,380)

        self.setWindowTitle("自定义信号与槽练习")

        gridLayout = QGridLayout()

        self.btn1 = QPushButton("无参数信号")

        self.btn2 = QPushButton("int信号")

        self.btn3 = QPushButton("int和str信号")

        self.btn4 = QPushButton("list信号")

        self.btn5 = QPushButton("dict信号")

        self.btn6 = QPushButton("多重载信号[int,str],[str]")

        self.textBrowser = QTextBrowser()

        gridLayout.addWidget(self.textBrowser,0,0,4,12)

        gridLayout.addWidget(self.btn1,5,0,1,2)

        gridLayout.addWidget(self.btn2,5,2,1,2)

        gridLayout.addWidget(self.btn3,5,4,1,2)

        gridLayout.addWidget(self.btn4,5,6,1,2)

        gridLayout.addWidget(self.btn5,5,8,1,2)

        gridLayout.addWidget(self.btn6,5,10,1,2)

        self.setLayout(gridLayout)

        self.mytxt = ""

        #空信号

        self.btn1.clicked.connect(self.mySignal1)

        self.signal1.connect(self.mySlotFunc1)

        #int数字信号

        self.btn2.clicked.connect(self.mySignal2)

        self.signal2.connect(self.mySlotFunc2)

        #int和str（数字和字符串）信号

        self.btn3.clicked.connect(self.mySignal3)

        self.signal3.connect(self.mySlotFunc3)

        #list列表信号

        self.btn4.clicked.connect(self.mySignal4)

        self.signal4.connect(self.mySlotFunc4)

        #dict字典信号

        self.btn5.clicked.connect(self.mySignal5)

        self.signal5.connect(self.mySlotFunc5)

        # 多重载信号

    def mySignal1(self):

        self.signal1.emit()

    def mySlotFunc1(self):

        self.mytxt += "无参数的信号"

        self.textBrowser.setText(self.mytxt)

    def mySignal2(self):

        self.signal2.emit(123456)

    def mySlotFunc2(self,val):

        self.textBrowser.setText(str(val))

    def mySignal3(self):

        self.signal3.emit(123456,"这是我的电话号码：")

    def mySlotFunc3(self, val,text):

        self.textBrowser.setText(text+str(val))

    def mySignal4(self):

        self.signal4.emit([1,5,9,0,0,0,0,1,2,3,4])

    def mySlotFunc4(self,li):

        print(li)

        for i in li:

            self.mytxt += str(i)

            # print(self.mytxt)

        self.textBrowser.setText(self.mytxt)

    def mySignal5(self):

        self.signal5.emit({"phone":90001111,

                           "addr":["浙江","宁波"]})

    def mySlotFunc5(self,mydict):

        self.textBrowser.setText(str(mydict["phone"])+str(mydict["addr"][0])+str(mydict["addr"][1]))

if __name__ == '__main__':

    app = QApplication(sys.argv)

    ex = Example()

    ex.show()

    sys.exit(app.exec_())