摘要: #include <stdio.h> #include <unistd.h> void usage() { printf("Usage:\n"); printf("\tOptDemo [-a] [-b] [-c message]"); } int main(int argc, char *argv[]) { int o; const char *optstring = "abc::"; // 有三 阅读全文
posted @ 2019-11-08 11:44 landv 阅读(186) 评论(0) 推荐(0) 编辑