怎样操作才能让程序正常运行呢？

#include<stdio.h>
#include<stdlib.h>

int main(int argc,char *argv[])
{
    int c;
    FILE *fp;
    if(argc!=2)
    {
        printf("format error!\n");
        //while(1);
        exit(0);
    }
    if( (fp=fopen(argv[1],"r"))==NULL )
    {
        printf("file can not open!\n");
        //while(1);
        exit(0);
    }
    while( (c=fgetc(fp))!= EOF )
        fputc(c,stdout);
    //while(1);
    fclose(fp);
    while(1);
    return 0;
}