Professional XML editors will help you to write error-free XML documents, validate your XML against a DTD or a schema, and force you to stick to a valid XML structure.

• 专业的XML程序编辑器将会帮助你实现XML文件书写的“零错误”，通过DTD或一个有效的格式实现XML的有效性，使你根据一个正确有效的XML结构去书写。