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python之PySide2安裝使用及QT Designer UI設(shè)計(jì)案例教程

更新時(shí)間：2021年07月26日 10:35:35 作者：MissU o_O

這篇文章主要介紹了python之PySide2安裝使用及QT Designer UI設(shè)計(jì)案例教程,本篇文章通過簡要的案例,講解了該項(xiàng)技術(shù)的了解與使用,以下就是詳細(xì)內(nèi)容,需要的朋友可以參考下

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\PySide2\designer.exe

Unable to lanch C:

PySide2目錄下復(fù)制uic.exe到新建的bin文件夾

C:\...\Python\Python39\site-packages\PySide2\bin\uic.exe

Ⅰ. Init

from PySide2.QtWidgets import *
 
class Window:
    def __init__(self):
        self.win = QMainWindow()
 
if __name__ == '__main__':
    app = QApplication([])
    w = Window()
    w.win.show()
    app.exec_()

from PySide2.QtWidgets import *
 
if __name__ == '__main__':
    app = QApplication([])
    win = QMainWindow()
    win.show()
    app.exec_()

Ⅱ Example

from PySide2.QtWidgets import *
 
 
class Window:
    def __init__(self):
        self.win = QMainWindow()
        self.win.resize(500, 400)
        self.win.move(700, 210)
        self.win.setWindowTitle("測試窗口")
 
 
        self.textEdit = QTextEdit(self.win)
        self.textEdit.move(50, 50)
        self.textEdit.resize(200, 300)
        self.textEdit.setPlaceholderText("請輸入文本")
 
 
        self.button = QPushButton("button", self.win)
        self.button.move(300, 100)
        self.button.clicked.connect(self.btnClick)
 
 
    def btnClick(self):
        info = self.textEdit.toPlainText()   # 獲取文本信息
        print(info)
        # print("button被點(diǎn)擊")
 
 
if __name__ == '__main__':
    app = QApplication([])
    # win = QMainWindow()
    # win.show()
    w = Window()
    w.win.show()
    app.exec_()

QT Designer

1.自動生成代碼

...
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()
    app.exec_()

2.動態(tài)加載ui文件

from PySide2.QtWidgets import *
from PySide2.QtCore import QFile
from PySide2.QtUiTools import QUiLoader
 
 
class Window:
    def __init__(self):
        super(Window, self).__init__()
 
        # 從文件中加載UI定義
        qfile = QFile("demo1.ui")
        qfile.open(QFile.ReadOnly)
        qfile.close()
 
        # 從UI定義中動態(tài)創(chuàng)建一個(gè)相應(yīng)的窗口對象, 將其內(nèi)部文件定義為self.ui.button
        self.ui = QUiLoader().load(qfile)
 
        self.ui.button.clicked.connect(self.btnClick)
        # self.button.clicked.connect(self.btnClick)
 
    def btnClick(self):
        info = self.ui.textEdit.toPlainText()   # 獲取文本信息
        # info = self.textEdit.toPlainText()
        print(info)
 
if __name__ == '__main__':
    app = QApplication([])
    w = Window()
    w.ui.show()
    # w.win.show()
    app.exec_()

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