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11/11/2022 16
MOV DX , OFFSET OBUF ;显示提示符“>”并回车换行
MOV AH , O9
INT 21H
MOV DX , OFFSET IBUF ;输入并显示字符串
MOV AH , 10
INT 21H
MOV BL, IBUF+1
MOV BH, 0
MOV IBUF[BX+2], ‘$’
MOV DL, 0AH ; 换行
MOV AH, 2
INT 21H
MOV DX , OFFSET IBUF+2 ; 再显示输入的字符串
MOV AH, 9
INT 21H