求商务英语写作的note和message写作格式

Note的英文解释是a short informal letter。从字面意思上看就是非正式的、简短的信，也就是便条。便条是相对memo来说更为简单的一种写作形式。它的格式较为不正式，语言更加口语化。它通常是一个人写给另一个人，它的对象是个人而非全体人员。例如你不能给一个部门写。一般情况下note都是手写的。
　例1.
　　Sarah,
　　I need this month's sales figures because I'll attend an international sales conference tomorrow. Could you prepare and send it to you ASAP?
　　(ASAP: as soon as possible)

note
to:
from:
sub.
date:
tomorrow we will hold an student party in the union centre. it is 6:00 a.m.please attend it on time.we are looking forward to your coming.

union student
7 25th