C库函数 rewind() C库函数 remove() C库函数 setbuf() C库函数 rewind() #include <stdio.h> int main () { char str[] = "This is codingdict.com"; FILE *fp; int ch; /* First let's write some content in the file */ fp = fopen( "file.txt" , "w" ); fwrite(str , 1 , sizeof(str) , fp ); fclose(fp); fp = fopen( "file.txt" , "r" ); while(1) { ch = fgetc(fp); if( feof(fp) ) { break ; } printf("%c", ch); } rewind(fp); printf("\n"); while(1) { ch = fgetc(fp); if( feof(fp) ) { break ; } printf("%c", ch); } fclose(fp); return(0); } C库函数 remove() C库函数 setbuf()