摘要：
解析(a (b c))+----+------+-------+|LIST|list=o|next=o--->NULL+----+-----|+-------+ | +-------+ | v+-----+-------+-------+ +----+------+-------+|VALUE|val="a"|next=o--->|LIST|list=o|next=o--->NULL+-----+-------+-------+ +----+-----|+-------+ | ... 阅读全文
