#include <stdio.h>
#include <stdlib.h>

#define SIZE 20

int main()
{
   int count,array1[SIZE],array2[SIZE];
   FILE *fp;

   for(count = 0; count < SIZE; count++)
   array1[count] = (2*count);

   if((fp = fopen("direct.txt","wb")) == NULL)
   {
       fprintf(stderr,"Erroring opening file");
       exit(1);
   }

   if(fwrite(array1,sizeof(int),SIZE,fp) != SIZE)
   {
       fprintf(stderr,"Error writing to file");
       exit(1);
   }
   fclose(fp);

   if((fp = fopen("direct.txt","rb")) == NULL)
   {
       fprintf(stderr,"Erroring opening file");
       exit(1);
   }
   if(fread(array2,sizeof(int),SIZE,fp) != SIZE)
   {
        fprintf(stderr,"Erroring reading file");
       exit(1);
   }
   fclose(fp);

   for(count = 0; count < SIZE;count++)
   {
       printf("%d\t%d\n",array1[count],array2[count]);//关于\n的有无和输出的不同

   }


   return 0;
}


如果加上\n输入正确，不加的话就不对，这是什么原因
  这是错误的图片

\n 是换行输出

嗯，那为什么加上\n和不加\n输出的内容会不一样呢？