最近做了一个类似Windows画图板的小程序，拿来和大家分享一下。功能和界面全部模仿于Windows自带的画图板，界面如截图。功能主要有： 手绘线、简单图形、文字输入、图块拖放、重复撤销、画面缩放、打开保存图片文件-Recently made a similar small Windows drawing board procedures used and to share with Members. Features and interfaces in Windows, bringing al