有以下程序#include stdio.hmain(){ FILE *fp; int i;char ch[]="abcd",t;fp=fopen("abc.dat","wb+");for(i=0; i4; i++) fwrite(ch[i],1,1,fp);fseek(fp,-2L,SEEK_END);fread(t,1,1,fp);fclose(fp);printf("%c\n",t);}程序执行后的输出结果是A)dB)cC)bD)a

有以下程序

#include <stdio.h>

main()

{ FILE *fp; int i;

char ch[]="abcd",t;

fp=fopen("abc.dat","wb+");

for(i=0; i<4; i++) fwrite(&ch[i],1,1,fp);

fseek(fp,-2L,SEEK_END);

fread(&t,1,1,fp);

fclose(fp);

printf("%c\n",t);

}

程序执行后的输出结果是

A)d

B)c

C)b

D)a


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