写在前面：

考虑已经陆陆续续在平台写了几篇PyQt5开发的小工具，后续还会继续发布新的新工具，这些工具都基于一个基础结构往上构建，这个基础结构是本人自己开发的习惯，在这里把工具的基础结构代码抽取出来，后续要开发新的工具直接复制结构代码，然后就可以直接开发主体。

界面：

1 进度条，基础结构里会有一个线程，耗时的业务在线程中执行

2 主体界面， 在主体位置放置业务相关控件

代码：

import sys
from threading import Thread
from typing import Dict,Any
from PyQt5 import QtCore,QtWidgets,QtGui
from PyQt5.QtCore import Qt
import pyqtgraph as pg
pg.setConfigOption('background','w')
pg.setConfigOption('foreground','k')

class BaseMainWidget(QtWidgets.QWidget):
    signal_excute = QtCore.pyqtSignal(object)
    def __init__(self):
        super().__init__()

        self.thread_caculate: Thread = None

        self.init_data()
        self.init_ui()
        self.register_event()
        self.progress_init()
        pass
    def init_data(self):
        pass
    def init_ui(self):
        self.setWindowTitle('PyQt5开发工具结构基础')
        self.setMinimumWidth(600)
        self.setMinimumHeight(400)

        self.caculate_progress = QtWidgets.QProgressBar()
        self.caculate_status_label = QtWidgets.QLabel()

        layout_progress = QtWidgets.QHBoxLayout()
        layout_progress.addWidget(self.caculate_progress)
        layout_progress.addWidget(self.caculate_status_label)

        temp_label = QtWidgets.QLabel('PyQt5开发工具结构基础\n这里放置业务内容')
        temp_label.setAlignment(Qt.AlignCenter)
        temp_label.setStyleSheet('QLabel{font-size:32px;font-weight:bold;}')
        layout_one = QtWidgets.QVBoxLayout()
        layout_one.addStretch(1)
        layout_one.addWidget(temp_label)
        layout_one.addStretch(1)

        layout = QtWidgets.QVBoxLayout()
        layout.addLayout(layout_progress)
        layout.addLayout(layout_one)
        self.setLayout(layout)
        pass
    def register_event(self):
        self.signal_excute.connect(self.process_excute_event)
        pass
    def process_excute_event(self,data:Dict):
        pass
    def start_caculate_thread(self,mark_str:str,data:Dict[str,Any]):
        if self.thread_caculate:
            QtWidgets.QMessageBox.information(
                self,
                '提示',
                '线程正在执行任务，请稍后。。。',
                QtWidgets.QMessageBox.Yes
            )
            return
        self.thread_caculate = Thread(
            target=self.running_caculate_thread,
            args=(
                mark_str, data,
            )
        )
        self.thread_caculate.start()
        self.progress_busy()
        pass
    def running_caculate_thread(self,mark_str:str,data:Dict[str,Any]):
        pass
    def progress_init(self) -> None:
        self.caculate_progress.setValue(0)
        self.caculate_status_label.setText('无任务')
    def progress_busy(self) -> None:
        self.caculate_progress.setRange(0, 0)
        self.caculate_status_label.setText('正在执行')
    def progress_finished(self) -> None:
        self.caculate_progress.setRange(0, 100)
        self.caculate_progress.setValue(100)
        self.caculate_status_label.setText('执行完毕')
        pass
    def closeEvent(self, a0: QtGui.QCloseEvent) -> None:
        self.close()
        pass


if __name__ == '__main__':
    QtCore.QCoreApplication.setAttribute(QtCore.Qt.HighDpiScaleFactorRoundingPolicy.PassThrough)
    app = QtWidgets.QApplication(sys.argv)
    main_window = BaseMainWidget()
    main_window.show()
    app.exec()
    pass