已知一个班的成绩，进行60,70,80,90,100分段统计

程序运行：

 

代码：

datas segmentstudents_number  dw 10students         dw 76,69,84,90,73,88,99,63,100,80s6      dw  0hs7      dw  0hs8      dw  0hs9      dw  0hs10     dw  0houtput_s6    db 's6=$'output_s7    db 0dh,0ah,'s7=$'output_s8    db 0dh,0ah,'s8=$'output_s9    db 0dh,0ah,'s9=$'output_s10   db 0dh,0ah,'s10=$'datas endsstacks segment stackdb  100h dup(?)stacks endscodes segmentassume cs:codes,ds:datas,ss:stacks
main   proc  far
start:push dsmov ax,0hpush axmov ax,datas          ;初始化dsmov ds,axmov cx,students_numbercmp cx,0 jz no_studentmov si,0s:mov ax,students[si]cmp ax,100ja  nextjb  low100inc s10             ;为100，计数器s10加一jmp nextlow100:cmp ax,90 jb low90inc s9              ;为90-99，计数器s9加一jmp nextlow90:cmp ax,80 jb low80inc s8              ;为80-89，计数器s8加一jmp nextlow80:cmp ax,70 jb low70inc s7             ;为70-79，计数器s7加一jmp nextlow70:cmp ax,60 jb nextinc s6            ;为60-69，计数器s6加一next:   add si,type studentsloop s lea dx,output_s6          ;输出s6mov ah,9int 21h	mov ax,s6call print_decimallea dx,output_s7          ;输出s7mov ah,9int 21h	mov ax,s7call print_decimallea dx,output_s8          ;输出s8mov ah,9int 21h	mov ax,s8call print_decimallea dx,output_s9         ;输出s9mov ah,9int 21h	mov ax,s9call print_decimallea dx,output_s10        ;输出s10mov ah,9int 21h	mov ax,s10call print_decimaljmp exitno_student:exit:retmain endp
print_decimal proc near  uses ax bx cx dx mov cx,0mov bx,10 de: xor dx,dx div bx push dx inc cx cmp ax,0 jnz de de1:pop dx add dl,30h mov ah,2 int 21h loop de1ret 
print_decimal endp 
codes endsend main