Lt421a. mac dispchar macro char 显示char字符 moy dl. char mov ah. 2 int 21h endm dispms g macro message ;显示 message字符串 mov dx, offset message mov ah. 9 int 21h endmdispchar macro char ;显示char字符 mov dl,char mov ah,2 int 21h endm dispmsg macro message ;显示message字符串 mov dx,offset message mov ah,9 int 21h endm Lt421a.mac