如何在 PyQt 中实现一个简单的按钮 [英] How to implement a simple button in PyQt

问题描述

我想在 PyQt 中实现一个简单的按钮，单击时会打印Hello world".我该怎么做?

I want to implement a simple button in PyQt which prints "Hello world" when clicked. How can I do that?

我是 PyQt 的真正新手.

I am a real newbie in PyQt.

推荐答案

如果您是 PyQt4 的新手，PyQt Wiki 帮助您入门.

If you're new to PyQt4, there are some useful tutorials on the PyQt Wiki to get you started.

但与此同时，这是您的Hello World"示例:

But in the meantime, here's your "Hello World" example:

from PyQt4 import QtGui, QtCore

class Window(QtGui.QWidget):
    def __init__(self):
        QtGui.QWidget.__init__(self)
        self.button = QtGui.QPushButton('Test', self)
        self.button.clicked.connect(self.handleButton)
        layout = QtGui.QVBoxLayout(self)
        layout.addWidget(self.button)

    def handleButton(self):
        print ('Hello World')

if __name__ == '__main__':

    import sys
    app = QtGui.QApplication(sys.argv)
    window = Window()
    window.show()
    sys.exit(app.exec_())

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