1、pip install pyqt6 pyqt6-toools

2、pycharm配置

      配置：designer

Program：：D:\Python39\Lib\site-packages\qt6_applications\Qt\bin\designer.exe

Working directory: $ProjectFileDir$

  配置：pyuic6.exe

Program：：D:\Python39\Scripts\pyuic6.exe

Arguments：$FileName$ -o $FileNameWithoutExtension$.py

Working directory: $ProjectFileDir$

举个例子：

import sys
from PyQt6.QtWidgets import (QApplication, QWidget, QLabel,QLineEdit, QMessageBox, QPushButton)
from PyQt6.QtCore import QCoreApplication# 主窗体
app = QApplication(sys.argv)  # 创建应用对象
LoginWindow = QWidget()  # 构造登陆窗口
LoginWindow.setWindowTitle('登陆窗口')  # 窗口标题
LoginWindow.resize(300, 180)  # 窗口大小# 姓名Label
name_Label = QLabel(LoginWindow)  # 放置在登陆窗口上
name_Label.setText('姓名')  # 设置显示文本
name_Label.move(60, 40)  # 设置位置# 输入姓名文本框
name_Edit = QLineEdit(LoginWindow)  # 放置在登陆窗口上
name_Edit.move(100, 36)  # 设置位置# 密码Label
pass_Label = QLabel(LoginWindow)  # 放置在登陆窗口上
pass_Label.setText('密码')  # 设置显示文本
pass_Label.move(60, 80)  # 设置位置# 输入密码文本框
pass_Edit = QLineEdit(LoginWindow)  # 放置在登陆窗口上
pass_Edit.move(100, 76)  # 设置位置
pass_Edit.setEchoMode(QLineEdit.EchoMode.Password)  # 设置输入密码不可见# 登陆函数
def end_event():if name_Edit.text() == "":QMessageBox.about(LoginWindow, '登陆', '请输入姓名')elif pass_Edit.text() == "":QMessageBox.about(LoginWindow, '登陆', '请输入密码')else:QMessageBox.about(LoginWindow, '登陆', name_Edit.text() + ' 欢迎登陆')# 登陆按钮
end_Btn = QPushButton('登陆', LoginWindow)
end_Btn.clicked.connect(end_event)  # 绑定登陆函数
end_Btn.move(60, 120)# 退出按钮
exit_Btn = QPushButton('退出', LoginWindow)
exit_Btn.clicked.connect(QCoreApplication.instance().quit)  # 绑定退出事件
exit_Btn.move(160, 120)LoginWindow.show()  # 显示窗口
sys.exit(app.exec())  # 进入消息循环