Brake and vehicle

The brake comprises a caliper body and a driving assembly, and a first containing cavity is formed in the caliper body; the driving assembly is located in the first containing cavity and used for braking the brake disc, the driving assembly comprises a driving piece and a connecting piece, the connecting piece comprises a first driving block, a second driving block and a buffer medium, the driving piece is in transmission connection with the first driving block, and the first driving block is located on one side of the buffer medium; the second driving block is located on the side, away from the first driving block, of the buffer medium. According to the brake provided by the embodiment of the invention, the responsiveness of a braking system and the rapid voltage buildup capability are improved, the braking responsiveness of the whole vehicle is improved, and the braking effect with high reliability and good control precision is provided for the whole vehicle.