摘要: 解释"MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL"的语义Network Working Group ... 阅读全文
posted @ 2014-05-07 16:15 LeonGo 阅读(531) 评论(0) 推荐(0) 编辑