qt练习10 涂鸦板源代码

源代码下载:

http://files.cnblogs.com/hnrainll/doodle.zip

http://www.cnblogs.com/hnrainll/archive/2011/05/30/2063138.html

原文地址:https://www.cnblogs.com/findumars/p/6009487.html