{dede:sql sql=' select description ,substring(description,1,90) as description from dede_arctype where id = 93 '} [field:description/] {/dede:sql}
截取前90个字
{dede:sql sql=' select description ,substring(description,1,90) as description from dede_arctype where id = 93 '} [field:description/] {/dede:sql}