rewind()函数

函数名: rewind功  能: 将文件指针重新指向一个流的开头用  法: int rewind(FILE *stream);程序例:

#include <stdio.h>#include <dir.h>

int main(void){    FILE *fp;    char *fname = "TXXXXXX", *newname, first;

newname = mktemp(fname);    fp = fopen(newname,"w+");    fprintf(fp,"abcdefghijklmnopqrstuvwxyz");    rewind(fp);    fscanf(fp,"%c",&first);    printf("The first character is: %c/n",first);    fclose(fp);    remove(newname);

return 0;}