在pyqt中添加两个布局

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout, QVBoxLayout, QPushButton, QLabel

if __name__ == '__main__':
    app = QApplication(sys.argv)
    
    # 创建主窗口
    window = QWidget()
    
    # 创建水平布局
    h_layout = QHBoxLayout()
    
    # 创建垂直布局
    v_layout = QVBoxLayout()
    
    # 创建按钮和标签
    button1 = QPushButton("Button 1")
    button2 = QPushButton("Button 2")
    label1 = QLabel("Label 1")
    label2 = QLabel("Label 2")
    
    # 将按钮和标签添加到布局中
    h_layout.addWidget(button1)
    h_layout.addWidget(button2)
    v_layout.addWidget(label1)
    v_layout.addWidget(label2)
    
    # 将水平布局和垂直布局添加到主窗口的布局中
    main_layout = QVBoxLayout()
    main_layout.addLayout(h_layout)
    main_layout.addLayout(v_layout)
    
    # 将布局设置为主窗口的布局
    window.setLayout(main_layout)
    
    window.show()
    sys.exit(app.exec_())