7. The chatting system according to claim 1 , further comprising: a communication platform between the pet client device and the virtual pet server device; wherein the communication platform forwards the natural language sentence and the natural language response between the pet client device and the virtual pet server device.
7. The chatting system according to claim 1 , further comprising: a communication platform between the pet client device and the virtual pet server device; wherein the communication platform forwards the natural language sentence and the natural language response between the pet client device and the virtual pet server device. 9. The chatting system according to claim 7 further comprising at least two virtual pet server devices, and the system further comprises a dispatch server set between the communication platform and the at least two virtual pet server devices; and the dispatch server receives the natural language sentence of the pet master from the communication platform, and dispatch the natural language sentence to each virtual pet server device according to a load balancing principle.