Positioning mechanism, flexible printed circuit, flexible printed circuit assembly, and electronic device

A positioning mechanism, configured to be arranged on a base, wherein the positioning mechanism comprises:

• at least two positioning members, arranged at intervals on the base along a length direction of the base;
• and
• a limiting member, arranged between the two positioning members, wherein each of the positioning members is provided with an clamping structure, two ends of the limiting member respectively extend to the clamping structures corresponding to the two positioning members, the clamping structure is configured to limit movement of the limiting member in a thickness direction of the base, and a flexible printed circuit is arranged between the limiting member and the base;
• the positioning member comprises a positioning post, an end of the positioning post is fixed to the base, and an other end of the positioning post is provided with a protrusion extending toward the limiting member;
• and
• the protrusion, the positioning post, and the base constitute the clamping groove.