摘要: declare @str nvarchar(50); set @str='462,464,2'; select @str as '字符串' select len(@str) as '字符长度' select charindex(',',@str,1) as '第一个逗号的索引值' select LE 阅读全文
posted @ 2023-05-06 10:18 七星飘虫 阅读(203) 评论(0) 推荐(0)