-- coding: utf-8 --
"""
【简介】
信号槽N对N连接、断开连接示例
"""
from PyQt5.QtCore import QObject , pyqtSignal
class SignalClass(QObject):
# 声明一个无参数的信号
signal1 = pyqtSignal()
# 声明带一个int类型参数的信号
signal2 = pyqtSignal(int)
def __init__(self,parent=None):
super(SignalClass,self).__init__(parent)
# 信号sin1连接到sin1Call和sin2Call这两个槽
self.signal1.connect(self.sin1Call)
self.signal1.connect(self.sin2Call)
# 信号sin2连接到信号sin1
self.signal2.connect(self.signal1)
# 信号发射
self.signal1.emit()
self.signal2.emit(1)
# 断开sin1、sin2信号与各槽的连接
self.signal1.disconnect(self.sin1Call)
self.signal1.disconnect(self.sin2Call)
self.signal2.disconnect(self.signal1)
# 信号sin1和sin2连接同一个槽sin1Call
self.signal1.connect(self.sin1Call)
self.signal2.connect(self.sin1Call)
# 信号再次发射
self.signal1.emit()
self.signal2.emit(1)
def sin1Call(self):
print("signal-1 emit")
def sin2Call(self):
print("signal-2 emit")
if name == 'main':
signal = SignalClass()
