代码如下


DATAS SEGMENT
MSG1 DB"What is your name? $"   ;此处输入数据段代码  
MSG2 DB"How old are you? $"
MSG  DB 10,13,'$'
BUF  DB 20
     DB ?
     DB 20 DUP(?)
BUF2 DB 10
     DB ?,10 DUP(?)
DATAS ENDS

STACKS SEGMENT
    ;此处输入堆栈段代码
STACKS ENDS

CODES SEGMENT
    ASSUME CS:CODES,DS:DATAS,SS:STACKS
START:
    MOV AX,DATAS
    MOV DS,AX
    LEA DX,MSG1
    MOV AH,9
    INT 21H
    LEA DX,MSG
    MOV AH,9
    INT 21H
    LEA DX,BUF
    MOV AH,10
    INT 21H
    LEA DX,MSG
    MOV AH,9
    INT 21H
    LEA DX,MSG2
    MOV AH,9
    INT 21H
    LEA DX,MSG
    MOV AH,9
    INT 21H
    LEA DX,BUF2
    MOV AH,10
    LEA DX,MSG   
    MOV AH,9   
    INT 21H   ;此处输入代码段代码
    LEA DX,BUF2
    MOV AH,10
    INT 21H
    MOV AH,4CH
    INT 21H
CODES ENDS
    END START


程序执行结果如下：
what is you name?
xing  xing   
how old are you  ?
20


现在我想实现在输入完20岁的年龄之后回车显示一个语句如：
what is you name?
xing  xing   
how old are you  ?
20
Oh,you are xing xing,and you are 20