Network device textfsm
采用二层文件见架构，第一层是设备厂商，第二层是操作textfsm
会对每个不同的厂商添加不同的操作textfsm解析模板
例如：Huawei的一台交换机设备，需要添加查询端口简要信息的操作#display interface brief
那么他应该在pidnetwork/JD_TextFSM/Huawei文件夹下面建立，建立一个huawei_vrp_display_interface_brief文件夹
huawei是设备厂商，vrp是系统名称，display_interface_brief是具体查询操作
在/pidnetwork/JD_TextFSM/Huawei/huawei_vrp_display_interface_brief这个文件夹下面建立三个文件
1.huawei_vrp_display_interface_brief.textfsm //该命令的解析模板
Value Required INTERFACE_NAME (\S+)
Value INTERFACE_PHYSICAL_STATE (down|[*^]down|up|up(\w+))
Value INTERFACE_PROTOCOL_STATE (down|[*^]down|up|up(\w+))
Value INUTI (\d*.?\d*%|--)
Value OUTUTI (\d*.?\d*%|--)
^Interface\s+PHY\s+Protocol\s+InUti\s+OutUti\s+inErrors\s+outErrors -> Interface
^\s*${INTERFACE_NAME}\s+${INTERFACE_PHYSICAL_STATE}\s+${INTERFACE_PROTOCOL_STATE}\s+${INUTI}\s+${OUTUTI}\s+${INERRORS}\s+${OUTERRORS} -> Record
2.huawei_vrp_display_interface_brief.raw //该命令的设备命令测试查询显示文档（可有多个，与yml对应，如raw1对应的是yml1）
*down: administratively down
(d): Dampening Suppressed
InUti/OutUti: input utility rate/output utility rate
Interface PHY Protocol InUti OutUti inErrors outErrors
100GE1/0/8 down down 0% 0% 0 0
100GE1/0/9 down down 0% 0% 0 0
100GE1/0/10 down down 0% 0% 0 0
100GE1/0/11 down down 0% 0% 0 0
100GE1/0/12 down down 0% 0% 0 0
3.huawei_vrp_display_interface_brief.yml //该命令的解析结果（可有多个，与yml对应，如yml1对应的是raw1）
"INTERFACE_NAME": "100GE1/0/8",
"INTERFACE_PHYSICAL_STATE": "down",
"INTERFACE_PROTOCOL_STATE": "down",
"INTERFACE_NAME": "100GE1/0/9",
"INTERFACE_PHYSICAL_STATE": "down",
"INTERFACE_PROTOCOL_STATE": "down",
"INTERFACE_NAME": "100GE1/0/10",
"INTERFACE_PHYSICAL_STATE": "down",
"INTERFACE_PROTOCOL_STATE": "down",
"INTERFACE_NAME": "100GE1/0/11",
"INTERFACE_PHYSICAL_STATE": "down",
"INTERFACE_PROTOCOL_STATE": "down",
"INTERFACE_NAME": "100GE1/0/12",
"INTERFACE_PHYSICAL_STATE": "down",
"INTERFACE_PROTOCOL_STATE": "down",
}]
yml和raw可以定义多个对应多组测试用例，尽可能多组测试