I am yous 65 PC by tree switch conect proparly but internet only conect one switch how to conect internet other switch

Huh? I cannot understand what you are asking. However many switches have an Uplink port. To daisy chain a switch you run a cable from one port to the Uplink port. If the switch doesn't have an Uplink port you may have to use a crossover cable.

If you have 65 PCs and connect properly then why only 1 switch can go to internet?
Do you use DHCP for all 65 PCs?
Is the DHCP server on the router or firewall?
Can all 65 PC be able to ping the default gateway and get reply?
If you have a firewall, do you have enough licence?

What is the ip address on your PC?
Can you post "ipconfig/all" result here?