When the file does not exist when reading in C language, you can directly write the file and create the file

FILE *fp;
fp= fopen("test.ini","r");
if(!fp)
{
   fp = fopen("test.ini","w");
   //fputs();
}

By default, we want to read the file. If the file does not exist, fopen will return NULL. At this time, we will use the write attribute to recreate the file.