C库函数 remove()

#include <stdio.h>

#include <string.h>



int main () {

   int ret;

   FILE *fp;

   char filename[] = "file.txt";



   fp = fopen(filename, "w");



   fprintf(fp, "%s", "This is codingdict.com");

   fclose(fp);



   ret = remove(filename);



   if(ret == 0) {

      printf("File deleted successfully");

   } else {

      printf("Error: unable to delete the file");

   }



   return(0);

}