Assembly code DATAS SEGMENT cap1 db "please input a string",0dh,0ah,"$" cap2 db "plesae input the letter you search",0dh,0ah,"$" str0 db 40,?,40 dup(0), str1 db 40 dup (0) DATAS ENDS STACKS SEGMENT dw 40h dup(?) STACKS ENDS CODES SEGMENT ASSUME CS:CODES,DS笑脸ATAS,SS:STACKS START: MOV AX,DATAS MOV