在屏幕上以多任务写出自己姓名的拼音首字母,以本字母为基本单元组成大字母的笔画,并同时动态画出(一个字母一个任务)-On the screen to multi-task to write their own name the first letter of alphabet to the letter as the basic unit of the formation of large alphabet strokes, and at the same time dynamic draw (o