https://openwrt.org/docs/guide-developer/packages

最好现在本机测试没问题之后，才烧到路由器上去调试

在系统里面,为新项目新建一个项目文件夹，将需要的代码copy到这个文件夹。不要动openwrt build成功的golden源码。

将src的代码调试到没问题之后，才编译到package

w@w:/home/openwrt/package/example/src$ ls
Makefile  myapp.c
w@w:/home/openwrt/package/example/src$ make
cc  -o myapp myapp.c -Wall
w@w:/home/openwrt/package/example/src$ ls
Makefile  myapp  myapp.c

## myapp.c, 位于/home/openwrt/package/example/src 目录下面
/*
 * otrx
 *
 * Copyright (C) 2015-2017 Rafał Miłecki <zajec5@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version