#include<stdio.h>
int MA[4];     /*空闲块数组*/
int A[9][4]={{3,1,2,3},{3,4,5,6},{0,0,0,0},{0,0,0,0},{3,0,7,8},
             {0,0,0,0},{0,0,0,0},{0,0,0,0},{0,0,0,0}};  /*磁盘空间专用块*/
int mark[9];       /*存放已分配的块*/
int No=0;              /*已分配的块数*/
void display1()//无参数无返回值的显示类函数，重要的是函数体 
{   int i,j,temp,count;
    No=0;
    if(MA[1]!=0)
       {   i=MA[0];
           printf("\n第1组:");
......................