完善测试代码

Author: cxinping

Chapter07/qt07_connSlotsByName.py

@@ -8,22 +8,20 @@
 """
 
 from PyQt5 import QtCore 
-from PyQt5.QtWidgets import QApplication  ,QWidget ,QHBoxLayout , QPushButton
+from PyQt5.QtWidgets import QApplication ,QWidget ,QHBoxLayout , QPushButton
 import sys    
 
-class CustWidget( QWidget):
+class CustWidget( QWidget ):
 
     def __init__(self, parent=None):
         super(CustWidget, self).__init__(parent)
 
         self.okButton = QPushButton("OK", self)
         #使用setObjectName设置对象名称
-        self.okButton.setObjectName("okButton")
-        
+        self.okButton.setObjectName("okButton")        
         layout =  QHBoxLayout()
         layout.addWidget(self.okButton)
-        self.setLayout(layout)
-        
+        self.setLayout(layout)                
         QtCore.QMetaObject.connectSlotsByName(self)
 
     @QtCore.pyqtSlot()    
@@ -33,6 +31,6 @@ def on_okButton_clicked(self):
 
 if __name__ == "__main__":        
     app =  QApplication(sys.argv)
-    demo = CustWidget()
-    demo.show()
+    win = CustWidget()
+    win.show()
     sys.exit(app.exec_())

Chapter07/qt07_signalSlot05.py

@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+
+"""
+    【简介】
+    自定义信号和内置槽示例
+
+
+"""
+
+from PyQt5.QtWidgets import  QApplication ,QWidget, QPushButton
+from PyQt5.QtCore import pyqtSignal
+import sys
+
+class WinForm(QWidget):
+	button_clicked_signal = pyqtSignal() # 自定义信号，不带参
+
+	def __init__(self, parent = None):
+		super(WinForm,self).__init__(parent)
+		self.resize(330,  50 ) 
+		self.setWindowTitle('自定义信号和内置槽示例')
+
+		btn = QPushButton('关闭', self)
+		# 连接信号/槽
+		btn.clicked.connect(self.btn_clicked) 
+		# 接收信号，连接到槽
+		self.button_clicked_signal.connect(self.close) 
+		
+	def btn_clicked(self):
+		# 发送无参数的自定义信号
+		self.button_clicked_signal.emit() 
+                
+if __name__ == '__main__':  
+	app = QApplication(sys.argv)
+	win = WinForm()
+	win.show()
+	sys.exit(app.exec_())