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1、计算机学院计算机科学与技术专业8班学号姓名协作者_________教师评定_________________实验题目实验用2.3分类统计字符个数COUNT_CHAR一、实验目的与要求学习用汇编语言编写与设计分支循环程序。题目：分类统计字符个数COUNT_CHAR二、实验内容程序接收用户键入的一行字符(字符个数不超过80个，该字符串用回车符结束)，并按字母、数字及其它字符分类计数，然后将结果存入以letter、digit和other为名的存储单元中。三、程序代码;******************************************Datasegmentstring1db'In
2、putyourstring:$'string2db'Digit:$'string3db'Letter:$'string4db'Other:$'Digitdb0Letterdb0Otherdb0dataends;*******************************************prognamsegment;-----------------------------------------------------------------mainprocfarassumecs:prognam,ds:datastart:pushds;保留现场subax,axpushaxmova
3、x,datamovds,axleadx,string1;输出string1movah,9int21hmovcx,80L1:movah,1;输入字符int21hcmpal,0dh;若是回车则结束jzovercmpal,30h;若小于30h(0)则others+1jbotherscmpal,39h;若大于39h(9)则跳转L2继续比较jaL2jmpdigits;否则digits+1L2:cmpal,41h;若小于41h(A)则others+1jbotherscmpal,5ah;若大于5ah(Z)则跳转L3继续比较jaL3jmpletters;否则letters+1L3:cmpal,61h;若小
4、于61h(a)则others+1jbotherscmpal,7ah;若大于7ah(z)则others+1jaothersjmpletters;否则letters+1digits:incdigitjmpover1others:incotherjmpover1letters:incletterjmpover1over1:loopL1over:callendlineleadx,string2;输出string2movah,9int21hsubax,axmoval,digitcalldisplaycallendlineleadx,string3;输出string3movah,9int21hsuba
5、x,axmoval,lettercalldisplaycallendlineleadx,string4;输出string4movah,9int21hsubax,axmoval,othercalldisplayretmainendp;------------------------------------------------------------------------------endlineprocnear;输出回车与换行movah,2movdl,0ahint21hmovah,2movdl,0dhint21hretendlineendp;----------------------
6、-------------------------------------------------------------displayprocnear;输出结果movdl,aladddl,30h;0的ascii码是30movah,2int21hretdisplayendp;---------------------------------------------------------------------------------------prognamends;*********************************************************ends
7、tart三、运行结果附录：由于这个实验一开始做错了题目，实验课上机检查是检查了该程序实验2.2查找匹配字符串程序代码：;---------------------------------------------newlinemacro;回车换行的宏定义movah,02hmovdl,0dhint21hmovah,02hmovdl,0ahint21hendm;---------------------------------
