Question

我尝试运行我的代码，它可以正常运行，但未按预期运行。我实际上希望按钮显示在我显示的窗口中

我已经从PyQt5.QtGui导入了QPushButton并编写了所需的代码

import sys
from PyQt5.QtWidgets import (QApplication, QWidget, QToolTip, QPushButton)
from PyQt5.QtGui import (QIcon, QFont)

if __name__ == '__main__':
app = QApplication(sys.argv)
 w = QWidget()
 w.resize(500, 500)
 w.move(700, 50)     #I can use w.setGeometry(v,w,x,y) here too
 w.setWindowTitle('DIDOs APP')
 w.setWindowIcon(QIcon('C:\\Users\\Pictures\\DB\default.jpg'))


  class Example(QWidget):
    def __init__self(w):
        super().__init__()
        w.initUI()

    def initUI(w):
        QToolTip.setFont(QFont('SansSerif', 10))
        w.setToolTip('This is a <b>QWidget</b> widget')
        btn = QPushButton('Button', w)
        btn.setToolTip('This is a <b>QWidget</b> widget')
        btn.resize(btn.sizeHint())
        btn.move(50, 50)
        btn.show(w)
 w.show()
 sys.exit(app.exec_())

我希望在运行代码时，按钮小部件应该显示在窗口中

Answer 1

尝试一下：

import sys
from PyQt5.QtWidgets import (QApplication, QWidget, QToolTip, QPushButton)
from PyQt5.QtGui import (QIcon, QFont)

class Example(QWidget):

#    def __init__self(self):                                # ---
    def __init__(self):                                     # +++

        super().__init__()
        self.initUI()

    def initUI(self):
        QToolTip.setFont(QFont('SansSerif', 10))
        self.setToolTip('This is a <b>QWidget</b> widget')
        btn = QPushButton('Button', self)
        btn.setToolTip('This is a <b>Button</b> widget')
        btn.resize(btn.sizeHint())
        btn.move(50, 50)

#        btn.show(self)

if __name__ == '__main__':
    app = QApplication(sys.argv)

    w = Example()                                            # - QWidget()  
    w.resize(500, 500)
    w.move(700, 50)     #I can use w.setGeometry(v,w,x,y) here too
    w.setWindowTitle('DIDOs APP')
    w.setWindowIcon(QIcon('D:/_Qt/img/pyqt.jpg'))

    w.show()
    sys.exit(app.exec_())

我的按钮未显示在显示的窗口中

1 个答案: