如何写工作拒绝信，，就是拒绝公司邀请的信

Date January 2nd 2007
Letter of Resignation（标题在中间位置）
Your name （你的名字）
Your Address university of Electronic science And Technology of China Zhongshan Institute code : 528403
Your City，State，Country Zhongshan，Guangdong，China（你的地址）
Company Name
Company Address
Company City，State，Country
Dear Ms / Mr____：
Please accept this letter as my formal notice of resignation from Sun effective January 2nd .It has been a pleasure working for you and I appreciate having had the opportunity to learn so much from you.
If I can help you train my replacement or tie up and loose ends, please let me know.
Sincerely
Your name 你的名字

for what?