python GUI库图形界面开发之PyQt5布局控件QHBoxLayout详细使用方法与实例

import sys
from PyQt5.QtWidgets import QApplication ,QWidget ,QHBoxLayout , QPushButton
class Winform(QWidget):
  def __init__(self,parent=None):
    super(Winform,self).__init__(parent)
    self.setWindowTitle("水平布局管理例子") 
    # 水平布局按照从左到右的顺序进行添加按钮部件。
    hlayout = QHBoxLayout()    
    hlayout.addWidget( QPushButton(str(1)))
    hlayout.addWidget( QPushButton(str(2)))
    hlayout.addWidget( QPushButton(str(3)))
    hlayout.addWidget( QPushButton(str(4)))    
    hlayout.addWidget( QPushButton(str(5)))    
    # todo 优化1 设置控件间距
    #hlayout.setSpacing(20)
    self.setLayout(hlayout)  
if __name__ == "__main__": 
    app = QApplication(sys.argv) 
    form = Winform()
    form.show()
    sys.exit(app.exec_())

import sys
from PyQt5.QtWidgets import QApplication ,QWidget ,QHBoxLayout , QPushButton
from PyQt5.QtCore import Qt 
class Winform(QWidget):
  def __init__(self,parent=None):
    super(Winform,self).__init__(parent)
    self.setWindowTitle("水平布局管理例子") 
    self.resize(800, 200)
    # 水平布局按照从左到右的顺序进行添加按钮部件。
    hlayout = QHBoxLayout() 
    #水平居左 垂直居上   
    hlayout.addWidget( QPushButton(str(1)) , 0 , Qt.AlignLeft | Qt.AlignTop)
    hlayout.addWidget( QPushButton(str(2)) , 0 , Qt.AlignLeft | Qt.AlignTop)
    hlayout.addWidget( QPushButton(str(3)))
    #水平居左 垂直居下
    hlayout.addWidget( QPushButton(str(4)) , 0 , Qt.AlignLeft | Qt.AlignBottom )    
    hlayout.addWidget( QPushButton(str(5)), 0 , Qt.AlignLeft | Qt.AlignBottom)  
    self.setLayout(hlayout)  
if __name__ == "__main__": 
  app = QApplication(sys.argv) 
  form = Winform()
  form.show()
  sys.exit(app.exec_())