PyQt6 网格布局Grid Layout (QGridLayout)

锋哥原创的PyQt6视频教程：

2024版 PyQt6 Python桌面开发 视频教程(无废话版) 玩命更新中~_哔哩哔哩_bilibili2024版 PyQt6 Python桌面开发 视频教程(无废话版) 玩命更新中~共计43条视频，包括：2024版 PyQt6 Python桌面开发 视频教程(无废话版) 玩命更新中~、第2讲 PyQt6库和工具库QTDesigner安装与配置、第3讲 PyQt6第一个程序HelloWorld实现等，UP主更多精彩视频，请关注UP账号。https://www.bilibili.com/video/BV11C4y1P7fj/

网格控件的基类是QGridLayout。QGridLayout 类将控件放置到网格中布局，它本身会从父窗口或父布局中占据尽可能多的界面空间，然后把自己的空间划分为行和列，再把每个控件塞到设置好的一个或多个单元格中。

QGridLayout网格控件的常用方法：

UI生成的参考代码：

from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(517, 404)
        self.gridLayoutWidget = QtWidgets.QWidget(parent=Form)
        self.gridLayoutWidget.setGeometry(QtCore.QRect(70, 40, 361, 311))
        self.gridLayoutWidget.setObjectName("gridLayoutWidget")
        self.gridLayout = QtWidgets.QGridLayout(self.gridLayoutWidget)
        self.gridLayout.setContentsMargins(10, 10, 10, 10)
        self.gridLayout.setHorizontalSpacing(26)
        self.gridLayout.setVerticalSpacing(36)
        self.gridLayout.setObjectName("gridLayout")
        self.lineEdit = QtWidgets.QLineEdit(parent=self.gridLayoutWidget)
        self.lineEdit.setObjectName("lineEdit")
        self.gridLayout.addWidget(self.lineEdit, 0, 2, 1, 1)
        self.label_2 = QtWidgets.QLabel(parent=self.gridLayoutWidget)
        self.label_2.setObjectName("label_2")
        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
        self.label = QtWidgets.QLabel(parent=self.gridLayoutWidget)
        self.label.setObjectName("label")
        self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
        self.lineEdit_2 = QtWidgets.QLineEdit(parent=self.gridLayoutWidget)
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.gridLayout.addWidget(self.lineEdit_2, 1, 2, 1, 1)

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.label_2.setText(_translate("Form", "密码："))
        self.label.setText(_translate("Form", "用户名："))