python QMainWindow QWidget

from PyQt5 import QtWidgets
from untitled import Ui_MainWindow
from PyQt5.QtWidgets import QFileDialog


class MyWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(MyWindow, self).__init__()
        self.setupUi(self)

    def openMsg(self):
        file, ok = QFileDialog.getOpenFileName(self, "打开", "C:/", "All Files (*);;Text Files (*.txt)")
        self.statusbar.showMessage(file)  # 在状态栏显示文件地址


if __name__ == "__main__":
    import sys

    app = QtWidgets.QApplication(sys.argv)
    myshow = MyWindow()
    myshow.show()
    sys.exit(app.exec_())  

======================

import sys

from PyQt5.QtWidgets import QApplication, QMainWindow, QTextEdit, QDockWidget, QListWidget
from PyQt5.QtCore import Qt


class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        # self.items = ['呵呵', 'aa', 'bb', 'cc', 'dd', 'ee', 'ff','g', 'h', 'i', 'j', 'k', 'l', 'm'
        #          ,'m','n','o','p','q','r','s','t']
        # self.init()
        # self.addDock()


    def init(self):
        self.text = QTextEdit('主窗口')
        self.text.setAlignment(Qt.AlignCenter)
        self.setCentralWidget(self.text)

        self.setGeometry(200, 200, 800, 400)
        self.setWindowTitle('QDockWidget示例')
        self.show()
        pass

    def onDockListIndexChanged(self, index):
        item = self.items[index]
        self.text.setText(item)
        pass

    def addDock(self):
        dock1 = QDockWidget('DockWidget')
        dock1.setFeatures(QDockWidget.DockWidgetFloatable)
        dock1.setAllowedAreas(Qt.LeftDockWidgetArea)
        listwidget = QListWidget()

        listwidget.addItems(self.items)
        listwidget.currentRowChanged.connect(self.onDockListIndexChanged)
        dock1.setWidget(listwidget)
        self.addDockWidget(Qt.LeftDockWidgetArea, dock1)


def main():
    app = QApplication(sys.argv)
    window = MainWindow()
    sys.exit(app.exec_())


# 入口
if __name__ == '__main__':
    main()

=============================

# -*- coding: utf-8 -*-
import json
import logging
import sys

import requests
from PyQt5 import QtWidgets
from ReqSend import *

'''===== [logg] .xu =============================================='''
# -*- coding: utf-8 -*-
import logging
import sys
import os
# 获取logger实例，如果参数为空则返回root logger
log = logging.getLogger("AppName")

# 指定logger输出格式
formatter = logging.Formatter('%(asctime)s %(levelname)-8s: %(message)s')

# 文件日志
file_handler = logging.FileHandler(os.path.basename(__file__)+".log")
file_handler.setFormatter(formatter)  # 可以通过setFormatter指定输出格式

# 控制台日志
console_handler = logging.StreamHandler(sys.stdout)
console_handler.formatter = formatter  # 也可以直接给formatter赋值

# 为logger添加的日志处理器
log.addHandler(file_handler)
log.addHandler(console_handler)

# 指定日志的最低输出级别，默认为WARN级别
log.setLevel(logging.DEBUG)

'''===== [logg] End of Section comment block .xu   ==============='''


class MyClass:
    # 初始化
    def __init__(self):
        print("=====＞def: " , "def")


myClass = MyClass()

from Test1_Form import Ui_Form  # 导入生成form.py里生成的类
class mywindow(QtWidgets.QWidget, Ui_Form):
    # def inputRequest(self):
    #    myClassnew.SBK = self.lineEdit_4.text()
    #
    # def outResponse(self):
    # self.textEdit_2.setText(r1Text)


    def __init__(self):
        super(mywindow,self).__init__()
        self.setupUi(self)

    def tes2(self):
        print("=====＞self: " , "self")
    def tes1(self):
        print("=====＞self: " , "self")
        try:
            url ="http://localhost:8080/AzuSpringMvc/test/xxrrr"
            myClassnew = MyClass()
            myClassnew.medicareNo ="A01534082"

            vvv=self.textEdit.toPlainText()
            log.warn(vvv)
            # myClassDict = vvv.__dict__
            # myClassJson = json.dumps(myClassDict, sort_keys=True, indent=2, ensure_ascii=False)
            # self.textEdit_2.setText(r1Text)
            myClassnew = MyClass()
            myClassnew = vvv
            # myClassnew.SBK = self.lineEdit_4.text()
            # r1Text = reqSend(myClassnew, url, log)
            myClassDict = myClassnew.__dict__
            log.warn(myClassDict)
            myClassJson = json.dumps(myClassDict, sort_keys=True, indent=2, ensure_ascii=False)
            log.warn(myClassJson)
            # self.textEdit_2.setText(r1Text)

            # myClassnew.SBK = self.lineEdit_4.text()
            r1Text = reqSend(myClassJson, url,log)
            # myClassDict = myClassnew.__dict__
            # myClassJson = json.dumps(myClassDict, sort_keys=True, indent=2, ensure_ascii=False)
            # self.textEdit_2.setText(r1Text)
        except:
            log.warn("except")
            pass


app = QtWidgets.QApplication(sys.argv)
window = mywindow()
window.show()
sys.exit(app.exec_())