getopt_long将完成这项工作，这是来自http://www.gnu.org/s/libc/manual/html_node/Getopt-
Long-Option-Example.html的示例
#include <stdio.h> #include <stdlib.h> #include <getopt.h> static int verbose_flag; int main (argc, argv) int argc; char **argv; { int c; while (1) { static struct option long_options[] = {{"verbose", no_argument, &verbose_flag, 1},{"brief", no_argument, &verbose_flag, 0},{"add", no_argument, 0, 'a'},{"append", no_argument, 0, 'b'},{"delete", required_argument, 0, 'd'},{"create", required_argument, 0, 'c'},{"file", required_argument, 0, 'f'},{0, 0, 0, 0} }; int option_index = 0; c = getopt_long (argc, argv, "abc:d:f:", long_options, &option_index); if (c == -1) break; switch (c) { case 0:if (long_options[option_index].flag != 0) break;printf ("option %s", long_options[option_index].name);if (optarg) printf (" with arg %s", optarg);printf ("n");break; case 'a':puts ("option -an");break; case 'b':puts ("option -bn");break; case 'c':printf ("option -c with value `%s'n", optarg);break; case 'd':printf ("option -d with value `%s'n", optarg);break; case 'f':printf ("option -f with value `%s'n", optarg);break; case '?':break; default:abort (); } } if (verbose_flag) puts ("verbose flag is set"); if (optind < argc) { printf ("non-option ARGV-elements: "); while (optind < argc) printf ("%s ", argv[optind++]); putchar ('n'); } exit (0); }
