pyqt清除所有控件PyQt5 QTableWidget 删除所有行:

PyQt5 QTableWidget 删除所有行:

self.tableWidget.setRowCount(0)

self.tableWidget.clearContents()

 删除layout中的所有widget：

  

   

    

     

    
    

     

      for i in range(self.gridLayout.count()): 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

       self.gridLayout.itemAt(i).widget().deleteLater()
     
    
  
 

加判断：

  

   

    

     

    
    

     

      import sip
     
    
   

    

     

    
    

     

      ...
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      class Window(QtGui.QMainWindow):
     
    
   

    

     

    
    

     

       ...
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 def populateFrame(self):
     
    
   

    

     

    
    

     

       self.deleteLayout(self.frame.layout())
     
    
   

    

     

    
    

     

       layout = QtGui.QVBoxLayout(self.frame)
     
    
   

    

     

    
    

     

       ...
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 def deleteLayout(self, layout):
     
    
   

    

     

    
    

     
 if layout is not None:
     
    
   

    

     

    
    

     
 while layout.count():
     
    
   

    

     

    
    

     

       item = layout.takeAt(0)
     
    
   

    

     

    
    

     

       widget = item.widget()
     
    
   

    

     

    
    

     
 if widget is not None:
     
    
   

    

     

    
    

     

       widget.deleteLater()
     
    
   

    

     

    
    

     
 else:
     
    
   

    

     

    
    

     

       self.deleteLayout(item.layout())
     
    
   

    

     

    
    

     

       sip.delete(layout)
     
    
  
 

文章来源: blog.csdn.net，作者：网奇，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/jacke121/article/details/117695889