Flexible printed circuit board and electronic device

An electronic device, comprising a flexible printed circuit board;

• wherein the flexible printed circuit board comprises:
• a first flexible unit with a first connecting portion and a plurality of first wires, and
• a second flexible unit with a first face and a second face;
• wherein each of the first wires comprises a welding point located at the first connecting portion, each of the welding points is provided with a first connecting structure, and the welding point is electrically connected to the first connecting structure;
• wherein the first face is located on a side of the second flexible unit facing away from the first flexible unit;
• wherein the second flexible unit further comprises a second connecting portion and a plurality of second wires, the second connecting portion is provided with a plurality of through holes, the plurality of through holes are provided in one-to-one correspondence to the plurality of second wires, a second connecting structure is disposed around a side wall of each of the through holes, and the second connecting structure extends to the first face and the second face and is electrically connected to the second wire;
• and
• wherein the first connecting structure runs through the through hole and is electrically connected to the second connecting structure.