WordPress.com 现已支持 Markdown

Enabling Markdown on WordPress.com

To start using Markdown, go to Settings → Writing in your blog dashboard, check the box next to Use Markdown for posts and pages, and save

亲，在哪个地方呢？能详细点么！根据这个找了半天没找到，最新的3.71版

是WordPress.com，不是WordPress