1 #!/usr/bin/python
 2 #coding:utf-8
 3 #Filename:WigetHelloWorld.py
 4
 5 import sys
 6 from PySide.QtCore import *
 7 from PySide.QtGui import *
 8
 9 app = QApplication(sys.argv)
10
11 widget = QWidget()
12 widget.resize(250,150)
13 widget.setWindowTitle("Hello World")
14 label = QLabel("<font color=red size=30>Hello world </font>",widget)
15 label.move(50,50)
16 widget.show()
17
18 sys.exit(app.exec_())

 1 #!/usr/bin/python
 2 #coding:utf-8
 3 #Filename:WigetHelloWorld.py
 4
 5 import sys
 6 from PySide.QtCore import *
 7 from PySide.QtGui import *
 8 class Example(QWidget):
 9   def __init__(self):
10     super(Example,self).__init__()
11     self.initUI()
12   def initUI(self):
13     label = QLabel("<font color=red size=30>Hello World</font>",self)
14     label.move(50,50)
15     self.setGeometry(300,300,250,150)
16     self.setWindowTitle("Hello World")
17     self.show()
18 def main():
19   app = QApplication(sys.argv)
20   ex = Example()
21   sys.exit(app.exec_())
22 if __name__ == "__main__":
23   main()

self.setGeometry(300,300,250,150) setGeometry的功能主要有两个：定位Widget在桌面上的位置和设置窗口的大小，前两个参数设置距离屏幕left和top的距离，后两个参数设置窗口的高和宽。

 1 snippet #
 2     #!/usr/bin/python
 3     #coding:utf-8
 4     #Filename:${1:filename}
 5 snippet qt
 6     import sys
 7     from PySide.QtCore import *
 8     from PySide.QtGui import *
 9     class ${1:classname}:
10         def __init__(self):
11             super(${2:classname},self).__init__()
12             self.initUI()
13         def initUI(self):
14             ${3:initUI}
15     def main():
16         app = QApplication(sys.argv)
17         ${4:TODO}
18         sys.exit(app.exec_())
19     if __name__ == "__main__":
20         main()