基础

应用入口

# -*- coding: UTF-8 -*-
import sys
from PyQt5.QtWidgets import QApplication,QMainWindow
from ui.login import Ui_LoginWindow
from ui.main import Ui_MainWindow
from qt_material import apply_stylesheet
from ui.frm_demo import Ui_FrmDemoWindow
import ui.source_rc
class login_window(Ui_LoginWindow,QMainWindow):
    def __init__(self):
        super(login_window, self).__init__()
        self.setupUi(self)
class main_window(Ui_MainWindow,QMainWindow):
    def __init__(self):
        super(main_window, self).__init__()
        self.setupUi(self)
class frm_demo_window(Ui_FrmDemoWindow,QMainWindow):
    def __init__(self):
        super(frm_demo_window,self).__init__()
        self.setupUi(self)
def main():

    app = QApplication(sys.argv)
    apply_stylesheet(app, theme='dark_teal.xml')
    w=frm_demo_window()

    w.setWindowTitle('登录')
    w.show()
    sys.exit(app.exec_())


if __name__ == '__main__':
    main()

窗体

resize窗体大小

    def resizeEvent(self, event):
        w = event.size().width()
        h = event.size().height()
        self.tableWidget.resize(w, h)
        self.tableWidget.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
        self.tableWidget.setAlternatingRowColors(True)

多窗体跳转

# 多窗口跳转定义:self.frm=frm()  self.frm.show()
class login(Ui_loginWindow,QMainWindow):
    def __init__(self):
        super(Ui_loginWindow,self).__init__()
        self.setupUi(self)
        self.pushButton.clicked.connect(self.btn)
    def btn(self):
        from demo4 import HelloWorldUI
        self.frm=HelloWorldUI()
        self.frm.show()

设置窗口图标

        icon = QIcon()
        icon.addFile(u"image/logo.ico", QSize(), QIcon.Normal, QIcon.Off)
        self.setWindowIcon(icon)

最顶端 永远在最前面 无边框（无法拖动）

self.setWindowFlags(Qt.WindowMaximizeButtonHint | Qt.WindowStaysOnTopHint | Qt.FramelessWindowHint)

美化

1. • qt_material
2. QSS