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
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