PyQt: QtDesigner 练习 PyQt5 loadUi 导入ui文件 1

import sys
from PyQt5.Qt import *
from PyQt5.uic import loadUi


class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.setup_ui()

    def setup_ui(self):
        loadUi("untitled.ui", self)

    def slot1(self):
        self.pushButton.setText("按钮被点击了")
        self.pushButton.adjustSize()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

# untitled.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Form</class>
 <widget class="QWidget" name="Form">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Form</string>
  </property>
  <widget class="QPushButton" name="pushButton">
   <property name="geometry">
    <rect>
     <x>150</x>
     <y>80</y>
     <width>75</width>
     <height>23</height>
    </rect>
   </property>
   <property name="text">
    <string>PushButton</string>
   </property>
  </widget>
 </widget>
 <resources/>
 <connections>
  <connection>
   <sender>pushButton</sender>
   <signal>clicked()</signal>
   <receiver>Form</receiver>
   <slot>slot1()</slot>
   <hints>
    <hint type="sourcelabel">
     <x>201</x>
     <y>92</y>
    </hint>
    <hint type="destinationlabel">
     <x>249</x>
     <y>92</y>
    </hint>
   </hints>
  </connection>
 </connections>
 <slots>
  <slot>slot1()</slot>
 </slots>
</ui>