amf协议格式英文文档 1 Introduction 1.1 Purpose 1.2 Notational Conventions 1.2.1 Augmented BNF 1.3 Basic Rules 1.3.1 Variable Length Unsigned 29-bit Integer Encoding 1.3.2 Strings and UTF-8 2 Technical Summary 2.1 Summary of improvements 3 AMF 3 Data Types 3.1 Overview 3.2 undefined Type 3.3 null Type 3.4 false Type 3.5 true Type 3.6 integer Type