[Script] automatically switches connections such as bras VPN

On Windows, you can use the rasdial command to automatically enable VPN-based dial-up networks such as bras. The following is an example: : Yankchina@gmail.com
@ Echo "Automated Bras operations"
: Use the rasdial command to automate bras dialing.
: Stop the original bras dialing
Rasdial seubras/disconnect

If % 1 = a goto opena
If % 1 = B goto openb
If % 1 = c goto close
Goto: EOF

: Enable the bras @ a service
: Opena
Rasdial seubras yourname @ a yourpassword
Goto end

: Openb
: Enable the bras @ B service.
Rasdial seubras yourname @ B yourpassword
Goto end

: Close

: End
: Pause