PyQt测试小程序

import sys
from PyQt4 import QtGui


app = QtGui.QApplication(sys.argv)
label = QtGui.QLabel("Hello Qt!")
label.show()

sys.exit(app.exec_())

import sys
from PyQt4 import QtCore, QtGui

app = QtGui.QApplication(sys.argv)

quit = QtGui.QPushButton("Quit")

QtCore.QObject.connect(quit, QtCore.SIGNAL("clicked()"),
                       app, QtCore.SLOT("quit()"))

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

import sys
from PyQt4 import QtCore, QtGui

 
app = QtGui.QApplication(sys.argv)
 
quit = QtGui.QPushButton("Quit")
quit.resize(75, 30)
quit.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold))

QtCore.QObject.connect(quit, QtCore.SIGNAL("clicked()"),
                       app, QtCore.SLOT("quit()"))

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

import sys
from PyQt4 import QtCore, QtGui

app = QtGui.QApplication(sys.argv)

window = QtGui.QWidget()

spinBox = QtGui.QSpinBox()
slider = QtGui.QSlider(QtCore.Qt.Horizontal)
spinBox.setRange(0, 130)
slider.setRange(0, 130)
 
QtCore.QObject.connect(spinBox, QtCore.SIGNAL("valueChanged(int)"),
                       slider, QtCore.SLOT("setValue(int)"))
QtCore.QObject.connect(slider, QtCore.SIGNAL("valueChanged(int)"),
                       spinBox, QtCore.SLOT("setValue(int)"))
spinBox.setValue(35)

layout = QtGui.QHBoxLayout()
layout.addWidget(spinBox)
layout.addWidget(slider)
window.setLayout(layout)

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

这个博客是不错的： http://blog.csdn.net/vagrxie/article/details/4272009

很不错的pyqt学习网站：http://zetcode.com/tutorials/pyqt4/

QWidget, QDialog, QMainWindow的区别： http://blog.csdn.net/ikahn/article/details/6706284