如何通过单击按钮创建一个新窗口

Question

我想在单击按钮时创建一个新窗口。稍后，我将根据输入的数据动态创建窗口。但我想先从简单开始。

function isObj (v) {
  while (     Object.prototype.toString.call(v) === '[object Object]')
  if    ((v = Object.getPrototypeOf(v))         === null)
  return true
  return false
}

console.log('FALSE:')
console.log('[]                   -> ', isObj([]))
console.log('null                 -> ', isObj(null))
console.log('document             -> ', isObj(document))
console.log('JSON                 -> ', isObj(JSON))
console.log('function             -> ', isObj(function () {}))
console.log('new Date()           -> ', isObj(new Date()))
console.log('RegExp               -> ', isObj(/./))

console.log('TRUE:')
console.log('{}                   -> ', isObj({}))
console.log('new Object()         -> ', isObj(new Object()))
console.log('new Object(null)     -> ', isObj(new Object(null)))
console.log('new Object({})       -> ', isObj(new Object({foo: 'bar'})))
console.log('Object.prototype     -> ', isObj(Object.prototype))
console.log('Object.create(null)  -> ', isObj(Object.create(null)))
console.log('Object.create({})    -> ', isObj(Object.create({foo: 'bar'})))
console.log('deep inheritance     -> ', isObj(Object.create(Object.create({foo: 'bar'}))))

Answer 1

您可以创建另一个QMainWindow()，然后单击按钮，激活show()方法

from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QPushButton, QGridLayout, QWidget, QLabel

class NewWindow(QtWidgets.QMainWindow):
    def __init__(self, parent=None):
        super(NewWindow, self).__init__(parent)

        self.label = QLabel('New Window!')
        centralWidget = QWidget()
        self.setCentralWidget(centralWidget)
        self.layout = QGridLayout(centralWidget)
        self.layout.addWidget(self.label)

class MyWindow(QtWidgets.QMainWindow, QPushButton):
    def __init__(self):
        super(MyWindow, self).__init__()
        centralWidget = QWidget()
        self.setCentralWidget(centralWidget)
        self.setWindowTitle("ASSET")
        self.Button = QPushButton('Action',self)
        self.Button.clicked.connect(self.Action)
        self.layout = QGridLayout(centralWidget)
        self.layout.addWidget(self.Button)

        self.new_window = NewWindow(self)

    def Action(self):
        self.new_window.show()

if __name__ == "__main__":
    import sys

    app = QtWidgets.QApplication(sys.argv)
    window = MyWindow()
    window.show()
    sys.exit(app.exec_())