1. 返回此节点及其子节点是否已经被解析(只读)：parentNode 返回父节点 (只读) | Parsed 返回此节点及其子节点是否已经被解析 (只读) | Prefix 返回名称空间前缀 (只读)
2. 若当前节点和其后代节点均被解析,则返回：parentNode:返回当前节点的父节点. | parsed:若当前节点和其后代节点均被解析,则返回True. | text:返回当前节点及其后代节点的所有文字内容.
1. parsed
1. But he insisted he hasn't made a decision and cautioned those who have parsed his comments this week looking for clues.