PyQt5学习笔记4

信号与槽 signal and slot

from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
# x=pyqtSignal(str)



class mywin(QWidget):
    signal6=pyqtSignal([int,str],[str])
    def __init__(self):
        super().__init__()
        self.resize(500,500)
        self.setUI()
    def setUI(self):
        layout=QVBoxLayout()
        self.setLayout(layout)
        self.btn=QPushButton(self)
        layout.addWidget(self.btn)
        self.btn.pressed.connect(self.funcSignal)
        self.signal6[int, str].connect(self.signalCall6)
        self.signal6[str].connect(self.signalCall7)
    def funcSignal(self):
        # self.signal6[int, str].emit(1, "第六")
        self.signal6[str].emit('第六')



    def signalCall6( self,val,text ):
        print('signal6 emit,value',val,text)
    def signalCall7( self,val ):
        print('signal6 ovetload emit',val)



if __name__ == '__main__':
    import sys
    app=QApplication(sys.argv)
    x=mywin()
    x.show()
    sys.exit(app.exec_())