要实现分析仪器数据的共享,首先应建立一套统一的数据交换标准,以规范数据格式;XML在共享性、开放性和扩展性等方面的诸多优点,因而更适用于质谱数据的存储与交换。本文解析MS文件的存储结构,介绍基于XML的mzXML标准,达到从MS到mzXML文件的转换目的,并以随机访问的形式解析mzXML文件,以提高mzXML文件的解析速度。 To achieve the sharing of analytical instrument data, a unified set of data exchange standards should be established to standardize the format of data. XML has many merits in terms of sharing, openness and scalability, which makes it more suitable for the storage and exchange of MS data . This paper analyzes the storage structure of MS files, describes the XML-based mzXML standard, and achieves the conversion from MS to mzXML files. The mzXML file is parsed by random access to improve the resolution speed of mzXML files.