更多"有以下程序:
#include <stdio.h>
mai"的相关试题:
[单项选择]有以下程序
#include
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(&,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
[单项选择]有以下程序
#include
main( )
{FILE * fp;int k , n,a[6]={1,2,3,4, 5,6};
fp=fopen("d2.dat","W");
fprintf(fp,"%d%d%d\n",a[0],a[1],a[2]);fprintf(fp,"%d%d%d\n",a[3],a[4],a[S]);
fclose(fp);
fp=fopen("d2.dat","r");
fscanf(fp,"%d%d",&k,.&n);printf("%d%d\n",k,n);
fclose(fp);
}
程序运行后的输出结果是【 】。
A. 12
B. 14
C. 1234
D. 123456