Keyboard and electronic device

A keyboard, comprising:

• an adaptation piece comprising a first component and a second component;
• a keyboard assembly comprising a key and a circuit board assembly;
• and
• a keyboard frame assembly comprising an outer metal frame, an inner metal frame, and a key avoidance hole, wherein the inner metal frame is connected to the outer metal frame, the key avoidance hole penetrates through the outer metal frame and the inner metal frame, the keyboard assembly is connected to the inner metal frame, the inner metal frame is located between the outer metal frame and the keyboard assembly, the inner metal frame is configured to carry the keyboard assembly, and the key is disposed in correspondence with the key avoidance hole;
• wherein the keyboard assembly is detachably connected to the inner metal frame;
• and
• wherein the first component is disposed on the inner metal frame, and the first component and the second component are fastened to connect the circuit board assembly and the inner metal frame.