Support and support system

The utility model discloses a support and a support system, and relates to the technical field of cleaning equipment, the support comprises a support body and a hanging rack, the hanging rack can be selectively installed at different positions of the support body, and at least one of the support body and the hanging rack is used for containing an element of a dust collector. According to the technical scheme, the hanging frame can be installed at different positions of the support body, when elements of the dust collector are stored, the position of the hanging frame on the support body can be adjusted so as to be suitable for storing the elements of the dust collector of different sizes, meanwhile, the position of the hanging frame can be adjusted to the height suitable for a user to take, and taking and placing are convenient. In addition, elements of the dust collector are stored in the height direction of the support body and do not occupy too much space of the ground, so that the space is saved, and the