fwrite

n.往文件中写

fread,fwrite,fseek vs createfile,&n... 函数的重载叫编译时的多态性对不?

fwrite(&book[i],sizeof(struct book),1,fp); "请你设定书的状态");

-himself wrote an IO of the simulated what fopen, fread and fwrite. 详细说明： 自己写的一个IO库，模拟了一下fopen

int fwrite (void *ptr, int size,int nitems,FILE *stream); 文件承受机读写函数：int fread(void *ptr,int size,int nitems,FILE *stream);