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感谢 mchome/dogcom: Drcom-generic implementation in C. 项目的代码支持！
下载压缩包后解压到你喜欢的地方，应该有三个文件
文件列表
·config.txt #配置文件
·dogcom.exe #主程序
·拨号.bat #启动脚本打开配置文件，内容如下
server = '192.168.1.2'
username = '校园网账号'
password = '校园网密码'
CONTROLCHECKSTATUS = '\x20'
ADAPTERNUM = '\x06'
IPDOG = '\x01'
host_name = 'reramisu-PC'
PRIMARY_DNS = '58.20.127.170'
dhcp_server = '192.168.1.2'
AUTH_VERSION = '\x2e\x00'
host_os = 'Windows 10'
KEEP_ALIVE_VERSION = '\xd8\x02'修改后应该是这样
server = '192.168.1.2'
username = '15611451419@sywx'
password = '123456'
CONTROLCHECKSTATUS = '\x20'
ADAPTERNUM = '\x06'
IPDOG = '\x01'
host_name = 'reramisu-PC'
PRIMARY_DNS = '58.20.127.170'
dhcp_server = '192.168.1.2'
AUTH_VERSION = '\x2e\x00'
host_os = 'Windows 10'
KEEP_ALIVE_VERSION = '\xd8\x02'