funtc99b.dat

这是一个包含多个语言的指令集

#include <sys\stat.h>
#include <stdio.h>
#include <io.h>
void make_read_only(char *filename);
int main(void)
{
    make_read_only("NOTEXIST.FIL");
    make_read_only("MYFILE.FIL");
    return 0;
}
void make_read_only(char *filename)
{
    int stat;
    stat = chmod(filename, S_IREAD);
    if (stat)
        printf("Couldn't make %s read-only
", filename);
    else
        printf("Made %s read-only
", filename);
}