PyQt6 表单布局Form Layout (QFormLayout)

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FormLayout控件表示表单布局，它的基类是QFormLayout，该控件以表单方式进行布局。

表单是一种网页中常见的与用户交互的方式，其主要由两列组成，第一列用来显示信息，给用户提示，而第二列需要用户进行输入或者选择

QFormLayout常用方法：

UI生成参考代码：

from PyQt6 import QtCore, QtGui, QtWidgets


class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(649, 520)
        self.formLayoutWidget = QtWidgets.QWidget(parent=Form)
        self.formLayoutWidget.setGeometry(QtCore.QRect(110, 60, 471, 371))
        self.formLayoutWidget.setObjectName("formLayoutWidget")
        self.formLayout = QtWidgets.QFormLayout(self.formLayoutWidget)
        self.formLayout.setLabelAlignment(QtCore.Qt.AlignmentFlag.AlignRight|QtCore.Qt.AlignmentFlag.AlignTrailing|QtCore.Qt.AlignmentFlag.AlignVCenter)
        self.formLayout.setFormAlignment(QtCore.Qt.AlignmentFlag.AlignLeading|QtCore.Qt.AlignmentFlag.AlignLeft|QtCore.Qt.AlignmentFlag.AlignTop)
        self.formLayout.setContentsMargins(20, 50, 20, 0)
        self.formLayout.setHorizontalSpacing(20)
        self.formLayout.setVerticalSpacing(30)
        self.formLayout.setObjectName("formLayout")
        self.label = QtWidgets.QLabel(parent=self.formLayoutWidget)
        self.label.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
        self.label.setObjectName("label")
        self.formLayout.setWidget(0, QtWidgets.QFormLayout.ItemRole.SpanningRole, self.label)
        self.label_2 = QtWidgets.QLabel(parent=self.formLayoutWidget)
        self.label_2.setObjectName("label_2")
        self.formLayout.setWidget(1, QtWidgets.QFormLayout.ItemRole.LabelRole, self.label_2)
        self.lineEdit = QtWidgets.QLineEdit(parent=self.formLayoutWidget)
        self.lineEdit.setObjectName("lineEdit")
        self.formLayout.setWidget(1, QtWidgets.QFormLayout.ItemRole.FieldRole, self.lineEdit)
        self.label_3 = QtWidgets.QLabel(parent=self.formLayoutWidget)
        self.label_3.setObjectName("label_3")
        self.formLayout.setWidget(2, QtWidgets.QFormLayout.ItemRole.LabelRole, self.label_3)
        self.lineEdit_2 = QtWidgets.QLineEdit(parent=self.formLayoutWidget)
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.formLayout.setWidget(2, QtWidgets.QFormLayout.ItemRole.FieldRole, self.lineEdit_2)
        self.label_4 = QtWidgets.QLabel(parent=self.formLayoutWidget)
        self.label_4.setObjectName("label_4")
        self.formLayout.setWidget(3, QtWidgets.QFormLayout.ItemRole.LabelRole, self.label_4)
        self.lineEdit_3 = QtWidgets.QLineEdit(parent=self.formLayoutWidget)
        self.lineEdit_3.setObjectName("lineEdit_3")
        self.formLayout.setWidget(3, QtWidgets.QFormLayout.ItemRole.FieldRole, self.lineEdit_3)
        self.pushButton = QtWidgets.QPushButton(parent=self.formLayoutWidget)
        self.pushButton.setObjectName("pushButton")
        self.formLayout.setWidget(4, QtWidgets.QFormLayout.ItemRole.FieldRole, self.pushButton)

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

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.label.setText(_translate("Form", "用户注册"))
        self.label_2.setText(_translate("Form", "用户名："))
        self.label_3.setText(_translate("Form", "密码："))
        self.label_4.setText(_translate("Form", "确认密码："))
        self.pushButton.setText(_translate("Form", "注册"))