python之PySide2安装使⽤及QTDesignerUI设计案例教程pyside2
>>> pip install pyside2
QT Designer
>>> pip show pyside2
Location: c:\users\Administrator\appdata\roaming\python\python39\site-packages
⽂件位置
C:\Users\Administrator\AppData\Roaming\Python\Python39\site-packages\
Unable to lanch C:
PySide2⽬录下复制到新建的bin⽂件夹
C:\...\Python\Python39\site-packages\PySide2\
Ⅰ. Init
from PySide2.QtWidgets import *
class Window:
def __init__(self):
python安装教程非常详细self.win = QMainWindow()
if __name__ == '__main__':
app = QApplication([])
w = Window()
w.win.show()
<_()
from PySide2.QtWidgets import *
if __name__ == '__main__':
app = QApplication([])
win = QMainWindow()
win.show()
<_()
Ⅱ Example
from PySide2.QtWidgets import *
class Window:
def __init__(self):
self.win = QMainWindow()
size(500, 400)
ve(700, 210)
self.win.setWindowTitle("测试窗⼝")
self.button = QPushButton("button", self.win)
ve(300, 100)
self.t(self.btnClick)
def btnClick(self):
info = PlainText()  # 获取⽂本信息
# print("button被点击")
if __name__ == '__main__':
app = QApplication([])
# win = QMainWindow()
# win.show()
w = Window()
w.win.show()
<_()
QT Designer
1.⾃动⽣成代码
...
from PySide2.QtCore import QFile
from PySide2.QtUiTools import QUiLoader    ...
if __name__ == "__main__":
app = QApplication([])
win = QMainWindow()
w = Ui_Form()
w.setupUi(win)
win.show()
<_()
2.动态加载ui⽂件
from PySide2.QtWidgets import *
from PySide2.QtCore import QFile
from PySide2.QtUiTools import QUiLoader
def __init__(self):
super(Window, self).__init__()
# 从⽂件中加载UI定义
qfile = QFile("demo1.ui")
qfile.open(QFile.ReadOnly)
qfile.close()
# 从UI定义中动态创建⼀个相应的窗⼝对象, 将其内部⽂件定义为self.ui.button
self.ui = QUiLoader().load(qfile)
self.ui.t(self.btnClick)
# self.t(self.btnClick)
def btnClick(self):
info = PlainText()  # 获取⽂本信息
# info = PlainText()
print(info)
if __name__ == '__main__':
app = QApplication([])
w = Window()
w.ui.show()
# w.win.show()
<_()
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