#-*-coding:utf-8-*-"""第一个程序"""#fromPyQt5importQtWidgetsfromPyQt5.QtWidgetsimport*fromPyQt5.QtGuiimportQColorimportsysclassmyDialog(QDialog):"""docstringformyDialog"""def__init__(self,arg=None):super(myDialog,self).__init__(arg)self.setWindowTitle("firstwindow")self.resize(400,100);addbtn=QPushButton