参考资料https://www.zhihu.com/column/pyqt5

导入安装包

pip install PyQt5 -i https://pypi.douban.com/simple
pip install PyQt5-tools -i https://pypi.douban.com/simple

pyqt5 designer

如何将生成的UI文件转化为py代码

pyuic5 main.ui -o main.py

好的，下面是一个简单的文件处理程序页面的设计代码示例：

文件处理示例

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QLabel, QLineEdit, QPushButton, QTextEdit, QFileDialogclass FileProcessor(QMainWindow):def __init__(self):super().__init__()self.initUI()def initUI(self):# 设置窗口标题self.setWindowTitle('文件处理程序')# 创建主窗口部件main_widget = QWidget()self.setCentralWidget(main_widget)# 创建垂直布局vbox = QVBoxLayout()# 创建水平布局hbox1 = QHBoxLayout()hbox2 = QHBoxLayout()# 添加标签和文本框到第一行水平布局label1 = QLabel('输入文件路径：')self.input_path = QLineEdit()hbox1.addWidget(label1)hbox1.addWidget(self.input_path)# 添加打开文件按钮到第一行水平布局open_button = QPushButton('打开文件')open_button.clicked.connect(self.open_file_dialog)hbox1.addWidget(open_button)# 添加标签和文本框到第二行水平布局label2 = QLabel('输出文件路径：')self.output_path = QLineEdit()hbox2.addWidget(label2)hbox2.addWidget(self.output_path)# 添加保存文件按钮到第二行水平布局save_button = QPushButton('保存文件')save_button.clicked.connect(self.save_file_dialog)hbox2.addWidget(save_button)# 添加两个水平布局到垂直布局vbox.addLayout(hbox1)vbox.addLayout(hbox2)# 添加文本框到垂直布局self.text_edit = QTextEdit()vbox.addWidget(self.text_edit)# 设置主窗口部件的布局main_widget.setLayout(vbox)def open_file_dialog(self):# 打开文件对话框file_path, _ = QFileDialog.getOpenFileName(self, '打开文件', '', 'Text Files (*.txt);;All Files (*)')if file_path:self.input_path.setText(file_path)def save_file_dialog(self):# 保存文件对话框file_path, _ = QFileDialog.getSaveFileName(self, '保存文件', '', 'Text Files (*.txt);;All Files (*)')if file_path:self.output_path.setText(file_path)if __name__ == '__main__':app = QApplication(sys.argv)fp = FileProcessor()fp.show()sys.exit(app.exec_())

文件界面

import sys
from PyQt5 import QtCore, QtGui, QtWidgetsclass Ui_Dialog(object):def setupUi(self, Dialog):Dialog.setObjectName("Dialog")Dialog.resize(769, 311)self.verticalLayout = QtWidgets.QVBoxLayout(Dialog)self.verticalLayout.setObjectName("verticalLayout")self.label_2 = QtWidgets.QLabel(Dialog)self.label_2.setObjectName("label_2")self.verticalLayout.addWidget(self.label_2)self.listWidget = QtWidgets.QListWidget(Dialog)self.listWidget.setObjectName("listWidget")self.verticalLayout.addWidget(self.listWidget)self.label_3 = QtWidgets.QLabel(Dialog)self.label_3.setObjectName("label_3")self.verticalLayout.addWidget(self.label_3)self.pushButton_2 = QtWidgets.QPushButton(Dialog)self.pushButton_2.setObjectName("pushButton_2")self.verticalLayout.addWidget(self.pushButton_2)self.pushButton = QtWidgets.QPushButton(Dialog)self.pushButton.setObjectName("pushButton")self.verticalLayout.addWidget(self.pushButton)self.label = QtWidgets.QLabel(Dialog)self.label.setObjectName("label")self.verticalLayout.addWidget(self.label)self.listView = QtWidgets.QListView(Dialog)self.listView.setObjectName("listView")self.verticalLayout.addWidget(self.listView)self.buttonBox = QtWidgets.QDialogButtonBox(Dialog)self.buttonBox.setOrientation(QtCore.Qt.Horizontal)self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)self.buttonBox.setObjectName("buttonBox")self.verticalLayout.addWidget(self.buttonBox)self.retranslateUi(Dialog)self.buttonBox.accepted.connect(Dialog.accept) # type: ignoreself.buttonBox.rejected.connect(Dialog.reject) # type: ignoreQtCore.QMetaObject.connectSlotsByName(Dialog)def retranslateUi(self, Dialog):_translate = QtCore.QCoreApplication.translateDialog.setWindowTitle(_translate("Dialog", "Dialog"))self.label_2.setText(_translate("Dialog", "输入文件"))self.label_3.setText(_translate("Dialog", "操作"))self.pushButton_2.setText(_translate("Dialog", "双周数据图表"))self.pushButton.setText(_translate("Dialog", "周销明细"))self.label.setText(_translate("Dialog", "输出文件"))if __name__ == '__main__':app = QtWidgets.QApplication(sys.argv)MainWindow = QtWidgets.QDialog()ui = Ui_Dialog()ui.setupUi(MainWindow)MainWindow.show()sys.exit(app.exec_())