本指南以 Starlette 官方文档 docs/routing.md为骨架，结合当前仓库的源码与测试，系统讲解 Starlette 的 HTTP/WebSocket 路由体系：如何定义路由表、使用路径参数与类型转换器、通过 Mount 组合子应用、利用 url_for 反查 URL、基于 Host 头路由，以及请求体大小限制等实战要点。

dicebear-core 是 DiceBear 头像库的 Python 官方实现，它接收一份风格定义（style definition）与一个种子字符串（seed），输出**确定性（deterministic）**的 SVG 头像——同一 seed、同一风格、同一选项，无论在哪门语言中渲染，都得到逐字节一致的 SVG。本文以仓库 src/python ...

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