复现已有算法

third_party/drogon_repo/drogon_ctl/main.cc

@@ -0,0 +1,49 @@
+/**
+ *
+ *  @file main.cc
+ *  @author An Tao
+ *
+ *  Copyright 2018, An Tao.  All rights reserved.
+ *  https://github.com/an-tao/drogon
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Drogon
+ *
+ */
+
+#include "cmd.h"
+#include <string>
+#include <vector>
+#include <iostream>
+
+int main(int argc, char *argv[])
+{
+    std::vector<std::string> args;
+    if (argc < 2)
+    {
+        args = {"help"};
+        exeCommand(args);
+        return 0;
+    }
+    for (int i = 1; i < argc; ++i)
+    {
+        args.push_back(argv[i]);
+    }
+    if (args.size() > 0)
+    {
+        auto &arg = args[0];
+        if (arg == "-h" || arg == "--help")
+        {
+            arg = "help";
+        }
+        else if (arg == "-v" || arg == "--version")
+        {
+            arg = "version";
+        }
+    }
+
+    exeCommand(args);
+
+    return 0;
+}