Question

有人可以为每个列定义标题吗？

macOS High Sierra v 10.13.3
输入：$ arp -a

? (192.168.0.1) at b0:7f:b9:5a:d:a2 on en4 ifscope [ethernet]
? (192.168.0.10) at 0:18:4d:ff:ff:7 on en4 ifscope [ethernet]
? (192.168.0.15) at 9c:f3:87:ba:cd:80 on en4 ifscope [ethernet]
? (192.168.0.18) at 78:28:ca:14:db:f0 on en4 ifscope [ethernet]
? (192.168.0.24) at 38:c9:86:e:16:99 on en4 ifscope permanent [ethernet]
? (192.168.0.255) at ff:ff:ff:ff:ff:ff on en4 ifscope [ethernet]
? (224.0.0.251) at 1:0:5e:0:0:fb on en4 ifscope permanent [ethernet]
? (239.0.0.250) at 1:0:5e:0:0:fa on en4 ifscope permanent [ethernet]
? (239.192.152.143) at 1:0:5e:40:98:8f on en4 ifscope permanent [ethernet]
? (239.255.255.250) at 1:0:5e:7f:ff:fa on en4 ifscope permanent [ethernet]

真诚的谢谢！

Answer 1

add = () => { this.setState(prevState => ({ data: prevState.data.filter(item => this.state.data.indexOf(item.id) !== -1).slice(0, 5), // this not working data: [...prevState.data, { "userId": 1, "id": 2, "title": "Two New", "body": "new data" } ] })) };
HOSTNAME | IP地址| MAC地址|接口| ROUTE COMMAND | ARP CACHE ENTRY STATE |硬件类型

HOSTNAME ：显然是if the hostname can't be resolved, you get a ? (239.255.255.250) at 1:0:5e:7f:ff:fa on en4 ifscope permanent [ethernet]
IP地址
MAC地址
接口或?：Ethernet Layer Tools, Appendix B.1.arp
ROUTE COMMAND ：在这种情况下，Iface为used to bind a route to a specific interface。 Routing flags。
ARP CACHE ENTRY STATE ：在这种情况下，ifscope引用manually added address resolution。
硬件类型或permanent：来自以太网图层工具的隐式参考，附录B.1.arp

希望这有助于某人下线

Linux arp -a输出表列定义

1 个答案: