直接跟D对齐,顶格写.不对啊再跟你说详细点：以下是全部格式：先写邮编 地址 右对齐然后是日期（可选）右对齐然后是称呼 左对齐接着是正文如：Department of Information Engineering Denver Institute of TechnologyDenver, Colorado, USA(修饰符) Prof. Green,(正文) 这里的修饰符就类似Dear给你一篇范文，自己看看吧。Mr. Steve Pincus Human Relations Winfield Medical 100 Main Street Winfield, FL 09876 Dear Mr. Pincus: Our last discussion left me thoroughly convinced that I can produce dramatic results for Winfield Medical. Count on my intelligence, experience, innate "people power," top-notch positioning, negotiation, and follow-up skills to bring in the steady stream of business you seek. Hire someone with the know-how, the guts, and the goods to succeed. Hire someone as committed to performance as you are. Hire me. Sincerely John Apgood (555) 456-789 Home Phone (555) 765-4321 Work Phone