实验一，编写汇编程序，验证从键盘输入的是否为一合法的整数assume cs:code,ds:datadata segment show db "Input a charactor ",0dh,0ah,"$" msg db " is a number",13,10,"$" msg2 db " is not a number$"data endscode segmentstart: mov ax,data mov ds,ax lea dx,show mov ah,9 int 21h mov ah,1 int 21h cmp al,'0' jb no cmp al,'9' ja noyes: lea dx,msg mov ah,9 int 21h jmp exitno: lea dx,msg2 mov ah,9 int 21hexit: mov ax,4c00h int 21hcode endsend start
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