当surge通过一个机场的代理节点访问某个网站失败时，是否可以自动切换到另外一个机场的代理？

我是用A机场时，他的代理无法访问 voa，但B机场可以访问voa。我想设置surge，在A代理访问voa失败的时候，能自动使用B机场的代理进行访问。两者之间可以无缝切换。

请问，如何设置？谢谢了

[Proxy]
A = xxx
B = xxx

[Proxy Group]
VOA = fallback, A, B

[Rule]
DOMAIN-KEYWORD,voa,VOA
......

Don 如果你非常明确 A 无法访问 voa，可以简化

[Proxy]
A = xxx
B = xxx

[Rule]
DOMAIN-KEYWORD,voa,B
......

楼上说的可以，但是你不如给代理分好组。
[Proxy Group]
Group A = select,policy-path=a.link
Group B = select,policy-path=b.link

[Rule]
RULE-SET,VOA-RULE.link,Group B
RULE-SET,proxy.link,Group A

还是没解决，我的代理启用了订阅模式，类似下面这样：

[Proxy]
#!include Flash_Trojan_subscription.conf

[Proxy Group]
#!include Flash_Trojan_subscription.conf

[Rule]
PROCESS-NAME,v2ray,DIRECT
PROCESS-NAME,xray,DIRECT
PROCESS-NAME,clash,DIRECT
PROCESS-NAME,naive,DIRECT
PROCESS-NAME,trojan,DIRECT
PROCESS-NAME,trojan-go,DIRECT
PROCESS-NAME,ss-local,DIRECT
PROCESS-NAME,privoxy,DIRECT
PROCESS-NAME,leaf,DIRECT
PROCESS-NAME,Thunder,DIRECT
PROCESS-NAME,DownloadService,DIRECT
PROCESS-NAME,qBittorrent,DIRECT
PROCESS-NAME,Transmission,DIRECT
PROCESS-NAME,fdm,DIRECT
PROCESS-NAME,aria2c,DIRECT
PROCESS-NAME,Folx,DIRECT
PROCESS-NAME,NetTransport,DIRECT
PROCESS-NAME,uTorrent,DIRECT
PROCESS-NAME,WebTorrent,DIRECT
DOMAIN-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/private.txt,DIRECT
DOMAIN-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/reject.txt,REJECT
DOMAIN-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/icloud.txt,DIRECT
DOMAIN-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/apple.txt,DIRECT
DOMAIN-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/google.txt,DIRECT
DOMAIN-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/proxy.txt,Proxies,force-remote-dns
DOMAIN-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/direct.txt,DIRECT
RULE-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/telegramcidr.txt,Proxies
RULE-SET,https://cdn.jsdelivr.net/gh/Loyalsoldier/surge-rules@release/cncidr.txt,DIRECT
#RULE-SET,VOA-RULE.link,GroupA
RULE-SET,SYSTEM,Proxies
RULE-SET,LAN,DIRECT
GEOIP,CN,DIRECT
FINAL,Proxies,dns-failed