请大家赏识我，并讲解给我听

12年前

main()   {     printf(" Hello World ! "); /* Display English */     printf(" 世界，你好！ "); /* 显示中文 */     printf("\n");   /* 换行 */     system("pause");  /* 暂停 */     return 0;   }

/*program name NONAME.exe */   #include <stdio.h>   #include <stdlib.h>   main(int argc, char * argv[], char * env[])   {    int i;    prinft("These are the %d command - line arguments passed to main:\n\n", argc);    for (i=0; i<=argc; i++)    printf("argv[%d]:%s\n",i,argv[i]);    printf("\nThe environment string(s)on this system are:\n\n");      for(i=0; env[i]!=NULL; i++)      printf(" env[%d]:%s\n", i, env[i]);     }