declare @myStr nvarchar(50)set @myStr = ‘昨夜西风凋碧树，独上高楼，望尽天涯路‘--set @myStr=STUFF(@myStr,18,0,‘,是吗？‘) -- stuff函数只能在字符串的开始和中间拼上字符，末尾不行set @myStr = @myStr + ‘,是吗？‘print @myStrselect LEN(@myStr) as strCount