用你的方法就行,按的你需求把所有字母都要删除,删除时指定语言Simplified Chinese
生成一个副本,处理副本
e.g.
CREATE FULLTEXT STOPLIST myStoplistTest FROM SYSTEM STOPLIST;
ALTER FULLTEXT INDEX ON [dbo].[表] SET STOPLIST = [myStoplistTest]
ALTER FULLTEXT STOPLIST myStoplistTest DROP 'a' LANGUAGE 'Simplified Chinese';