Air conditioning system and automobile

An air conditioning system, comprising:

• a first heat exchange air duct provided with a built-in evaporator, a first air inlet end and a first air outlet end, wherein the first air inlet end is communicated with a fresh air inlet outside a vehicle, and the first air outlet end is communicated with a first air outlet port inside the vehicle;
• a second heat exchange air duct provided with a built-in heater, a second air inlet end and a second air outlet end, wherein the second air inlet end is communicated with the fresh air inlet and/or the first air inlet end, and the second air outlet end is communicated with a second air outlet port inside the vehicle;
• and
• a circulating system comprising a circulation air inlet respectively communicated with an interior of the vehicle, the first air inlet end and/or the second air inlet end, so as to recycle an air after a heat exchange through the first heat exchange air duct and/or the second heat exchange air duct, and circulate and transport the air to the first air inlet end and/or the second air inlet end.