Mac at the same time linked to a network, how to easily switch?

clipboard.png
usb Ethernet is the internal network (no access to the Internet,), wifi is the external network (can surf the Internet)

Mar.16,2021

Macbook uses dual network cards to connect both internal and external networks at the same time
first, check the routing table to learn about the basic situation
Open the terminal and enter

netstat-rt

then make it clear how we should modify
https://www.jianshu.com/p/807.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1eb25cd-23cd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1eb25cd-23cd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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