http://blog.csdn.net/Angelasan/article/details/44917283

发现我的使用时候有点跟他不同.

我是

g: utf-8 -*-# Form implementation generated from reading ui file '1.ui'## Created by: PyQt5 UI code generator 5.6## WARNING! All changes made in this file will be lost!from PyQt5 import QtCore, QtGui, QtWidgetsfrom PyQt5.QtCore import *from PyQt5.QtWidgets import * class Ui_Dialog(object):    def setupUi(self, Dialog):        Dialog.setObjectName("Dialog")        Dialog.resize(813, 703)        self.textEdit = QtWidgets.QTextEdit(Dialog)        self.textEdit.setGeometry(QtCore.QRect(80, 120, 671, 421))        self.textEdit.setObjectName("textEdit")        self.retranslateUi(Dialog)        QtCore.QMetaObject.connectSlotsByName(Dialog)        Dialog.show()    def retranslateUi(self, Dialog):        _translate = QtCore.QCoreApplication.translate        Dialog.setWindowTitle(_translate("Dialog", "Dialog"))if __name__ == "__main__":    import sys    app = QApplication(sys.argv)    widget = QWidget(None)    Ui_Dialog().setupUi(widget)    sys.exit(app.exec_())    pass

也就是第五步从1.py进行修改:1.在setupUi里面最后一行写的是Dialog.show()  2.最后贴上 

if __name__ == "__main__":    import sys    app = QApplication(sys.argv)    widget = QWidget(None)    Ui_Dialog().setupUi(widget)    sys.exit(app.exec_())    pass

就可以了.

原因就是qtdesingner不给写这个class的show,也缺少if main这些东西,然后实例化的时候需要自己看着改,我这里的class是

Ui_Dialog.所以倒数第三行是他加()