Switch system and water gun

The invention discloses a switch system and a water gun comprising the switch system. The switch system is used for the water gun, the water gun comprises a gun head, the gun head is provided with a water outlet, and the switch system comprises a driver, an elastic piece, a driving body, a connecting line and a valve needle used for being inserted into the water outlet to seal the water outlet. The driver, the driving main body, the connecting line and the valve needle are connected in sequence; the elastic piece is arranged between the driver and the driving main body; when the driver works, the driving main body is driven to approach the driver, so that the connecting line is driven to slide, the valve needle is driven to move, the water outlet is opened, and meanwhile, the elastic piece is compressed. When the switching system is used for the water gun, the connecting line can be bent as required, so that the driver, the driving main body and the valve needle do not need to form a straight line, and the li