参考：

http://blog.csdn.net/lingchen214/article/details/17960789

http://blog.sina.com.cn/s/blog_a6fb6cc90101ed6n.html

http://blog.sina.com.cn/s/blog_a6fb6cc90101en3a.html

http://blog.csdn.net/sbisyju/article/details/8697081

http://bbs.csdn.net/topics/390290700

http://blog.sina.com.cn/s/blog_56e295440100qklh.html

# 是否可以编辑        QComboBox.setEditable(True)        # 在输入的时候给予提示         wordList =["alpha" ,  "omega" ,  "omicron" ,  "zeta"]         completer  =QCompleter (wordList)           combox.setCompleter (completer)

效果图：