clear.c

这是老早前学生时代用TurboC++3.0写的dos程序

#include <stdio.h>
#include "block.h"

void write_into_disk(ORDER *ptr,FILE *fp)
     {
       register i=0;

       do{
	   fwrite(ptr,sizeof(ORDER),1,fp);
	   ptr++;
	 }while(++i<10);

       return;
     }
int read_into_order(ORDER *ptr,FILE *fp)
     {
       register i,count;

       for(i=0;i<10;i++)
	  {
	    count=fread(ptr,sizeof(ORDER),1,fp);
	    ptr++;
	    if(count!=1) break;
	  }
       if(i==10) return 0;
       else return i;
     }
main()
    {
      static ORDER ch[10],ch1[10];
      register i=0;
      FILE *fp;
      char s[10]="          ";

      printf("Please input clear password: ");
      scanf("%s",s);
      if( !strstr(s,"clearok") ){
	printf("\npassword wrong!\n");
	return 1;
      }

      strcpy(ch[0].name,"        ");
      ch[0].order=0l;

      fp=fopen("player.sav","w+b");
      for(i=0;i<10;i++)
	 {
	   fwrite(&ch[i],sizeof(ORDER),1,fp);
	 }
      fseek(fp,0L,SEEK_SET);
      for(i=0;i<10;i++)
	 {
	   fread(&ch1[i],sizeof(ORDER),1,fp);
	 }
      fclose(fp);
      printf("\nclear ok !\n");
      return 0;
    }