【PyQt5】详解QHBoxLayout和QVBoxLayout

• 1. 简介
• 2.QHBoxLayout
• 3. QVBoxLayout
• 4. 综合布局
• 5. 伸展因子

QHBoxLayout和QVBoxLayout是用来布局的，前者用来水平布局，后者用来垂直布局。

水平布局

垂直布局

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


class Example(QWidget):

    def __init__(self):
        super().__init__()
        self.init_ui()

    def init_ui(self):
        button1 = QPushButton("first")
        button2 = QPushButton("second")
        button3 = QPushButton("third")
        horizontal = QHBoxLayout()
        horizontal.addWidget(button1)
        horizontal.addWidget(button2)
        horizontal.addWidget(button3)
        self.setLayout(horizontal)
        self.setGeometry(300, 300, 300, 100)
        self.setWindowTitle("demo")
        self.show()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())

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


class Example(QWidget):

    def __init__(self):
        super().__init__()
        self.init_ui()

    def init_ui(self):
        button1 = QPushButton("first")
        button2 = QPushButton("second")
        button3 = QPushButton("third")
        vertical = QVBoxLayout()
        vertical.addWidget(button1)
        vertical.addWidget(button2)
        vertical.addWidget(button3)
        self.setLayout(vertical)
        self.setGeometry(300, 300, 300, 100)
        self.setWindowTitle("demo")
        self.show()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())

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


class Example(QWidget):
    def __init__(self):
        super().__init__()
        self.init_ui()

    def init_ui(self):
        button1 = QPushButton("button1")
        button2 = QPushButton("button2")
        button3 = QPushButton("button3")
        button4 = QPushButton("button4")
        button5 = QPushButton("button5")
        button6 = QPushButton("button6")
        horizontal1 = QHBoxLayout()
        horizontal1.addWidget(button1)
        horizontal1.addWidget(button2)
        horizontal1.addWidget(button3)
        horizontal2 = QHBoxLayout()
        horizontal2.addWidget(button4)
        horizontal2.addWidget(button5)
        horizontal2.addWidget(button6)
        vertical = QVBoxLayout()
        vertical.addLayout(horizontal1)
        vertical.addLayout(horizontal2)
        self.setLayout(vertical)
        self.setGeometry(300, 300, 300, 100)
        self.setWindowTitle("comprehensive")
        self.show()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())

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


class Example(QWidget):
    def __init__(self):
        super().__init__()
        self.init_ui()

    def init_ui(self):
        button1 = QPushButton("button1")
        button2 = QPushButton("button2")
        button3 = QPushButton("button3")
        button4 = QPushButton("button4")
        button5 = QPushButton("button5")
        button6 = QPushButton("button6")
        horizontal1 = QHBoxLayout()
        horizontal1.addStretch(2)
        horizontal1.addWidget(button1)
        horizontal1.addStretch(3)
        horizontal1.addWidget(button2)
        horizontal1.addStretch(5)
        horizontal1.addWidget(button3)
        horizontal2 = QHBoxLayout()
        horizontal2.addWidget(button4)
        horizontal2.addWidget(button5)
        horizontal2.addWidget(button6)
        vertical = QVBoxLayout()
        vertical.addLayout(horizontal1)
        vertical.addLayout(horizontal2)
        self.setLayout(vertical)
        self.setGeometry(300, 300, 1000, 500)
        self.setWindowTitle("comprehensive")
        self.show()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())

作者：Beyong　　　　
出处：Beyong博客
github地址：https://github.com/beyong2019

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