int main(int argc, char** argv)

hello.exe Shiqi Yu 

#include <stdio.h>
int main(int argc, char ** argv)
{
 int i;
 for (i=0; i < argc; i++)
  printf("Argument %d is %s./n", i, argv[i]);
 return 0;
}

hello.exe a b c d e

Argument 0 is hello.exe.
Argument 1 is a.
Argument 2 is b.
Argument 3 is c.
Argument 4 is d.
Argument 5 is e.

hello.exe lena.jpg

Argument 0 is hello.exe.
Argument 1 is lena.jpg.