字符连接有关问题

declare @str nvarchar(50)declare @t nvarchar(10)set @str='hello world!'set @t='你好'要求结果为："hello world!-你好"怎么做

declare @str nvarchar(50)declare @t nvarchar(10)set @str='hello world!'set @t='你好'PRINT @str + '-' + @t
------解决方案--------------------
SQL code
declare @str nvarchar(50)declare @t nvarchar(10)set @str='hello world!'set @t='你好'select @[email protected]