本文共 3644 字，大约阅读时间需要 12 分钟。

PyQt5之设置控件之间的伙伴关系

伙伴关系：设置两个控件之间的关联，通过一个控件控制另一个控件。

1、首先选择在Widget Box中拖入一个Frame属性放在窗口中，再往窗口中添加Label、Line Edit属性，并且修改Label属性的显示值，在这里我采用容器布局管理，对整个Frame容器使用表单布局，效果图如下：

热键：又叫快捷键，通过操控键盘的特点键来快速完成指定的操作，代替了鼠标的繁琐移动。如：Ctrl+A，Ctrl+C，Alt、Shift等等。

3、然后点击菜单栏中的Edit选项，选择Edit Buddies来设置伙伴关系，鼠标左键按住Label，向右拖到Line Edit，这样伙伴关系就设置好了。如下图：

# -*- coding: utf-8 -*-# Form implementation generated from reading ui file 'D:\Python--PyQt5--Eric6\first.ui'## Created by: PyQt5 UI code generator 5.13.2## WARNING! All changes made in this file will be lost!from PyQt5 import QtCore, QtGui, QtWidgetsclass Ui_MainWindow(object):    def setupUi(self, MainWindow):        MainWindow.setObjectName("MainWindow")        MainWindow.resize(800, 600)        self.centralwidget = QtWidgets.QWidget(MainWindow)        self.centralwidget.setObjectName("centralwidget")        self.frame = QtWidgets.QFrame(self.centralwidget)        self.frame.setGeometry(QtCore.QRect(160, 130, 232, 101))        self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)        self.frame.setFrameShadow(QtWidgets.QFrame.Raised)        self.frame.setObjectName("frame")        self.formLayout = QtWidgets.QFormLayout(self.frame)        self.formLayout.setObjectName("formLayout")        self.label = QtWidgets.QLabel(self.frame)        self.label.setObjectName("label")        self.formLayout.setWidget(0, QtWidgets.QFormLayout.LabelRole, self.label)        self.lineEdit = QtWidgets.QLineEdit(self.frame)        self.lineEdit.setObjectName("lineEdit")        self.formLayout.setWidget(0, QtWidgets.QFormLayout.FieldRole, self.lineEdit)        self.label_2 = QtWidgets.QLabel(self.frame)        self.label_2.setObjectName("label_2")        self.formLayout.setWidget(1, QtWidgets.QFormLayout.LabelRole, self.label_2)        self.lineEdit_2 = QtWidgets.QLineEdit(self.frame)        self.lineEdit_2.setObjectName("lineEdit_2")        self.formLayout.setWidget(1, QtWidgets.QFormLayout.FieldRole, self.lineEdit_2)        self.label_3 = QtWidgets.QLabel(self.frame)        self.label_3.setObjectName("label_3")        self.formLayout.setWidget(2, QtWidgets.QFormLayout.LabelRole, self.label_3)        self.lineEdit_3 = QtWidgets.QLineEdit(self.frame)        self.lineEdit_3.setObjectName("lineEdit_3")        self.formLayout.setWidget(2, QtWidgets.QFormLayout.FieldRole, self.lineEdit_3)        MainWindow.setCentralWidget(self.centralwidget)        self.menubar = QtWidgets.QMenuBar(MainWindow)        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))        self.menubar.setObjectName("menubar")        MainWindow.setMenuBar(self.menubar)        self.statusbar = QtWidgets.QStatusBar(MainWindow)        self.statusbar.setObjectName("statusbar")        MainWindow.setStatusBar(self.statusbar)        self.label.setBuddy(self.lineEdit)        self.label_2.setBuddy(self.lineEdit_2)        self.label_3.setBuddy(self.lineEdit_3)        self.retranslateUi(MainWindow)        QtCore.QMetaObject.connectSlotsByName(MainWindow)    def retranslateUi(self, MainWindow):        _translate = QtCore.QCoreApplication.translate        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))        self.label.setText(_translate("MainWindow", "姓名(&A)"))        self.label_2.setText(_translate("MainWindow", "年龄(&B)"))        self.label_3.setText(_translate("MainWindow", "性别(&C)"))if __name__ == "__main__":    import sys    app = QtWidgets.QApplication(sys.argv)    MainWindow = QtWidgets.QMainWindow()    ui = Ui_MainWindow()    ui.setupUi(MainWindow)    MainWindow.show()    sys.exit(app.exec_())

转载地址：http://rpozi.baihongyu.com/