int main()
{
#if 0
FILE *fp=NULL;
int i;
char num[5]={0x11,0x22,0x33,0x44,0x55};
fp=fopen("aaaa.txt","w+");
if(fp==NULL)
{
printf("fopen failed");
}
for(i=0;i<5;i++)
{
fprintf(fp,"%x",num[i]);
}
fclose(fp);
#endif
FILE *fp1=NULL;
fp1=fopen("aaaa.txt","r+");
if(fp1==NULL)
{
printf("fopen failed");
}
int j;
char buffer[5]={};
fread(buffer,5,1,fp1);
for(j=0;j<5;j++)
{
printf("%d",buffer[j]);
}
fclose(fp1);
return 0;
}
运行结果
[guest2@localhost 16.7.22]$ ./aaaa
4949505051[guest2@localhost 16.7.22]$ cat aaaa.txt
1122334455[guest2@localhost 16.7.22]$
我先执行注释前面的,先将16进制数组写到文档里面,然后在从文档里面读取出来,读到buffer里面。但是和预期的结果不一样。