A hinge includes a positioning member, and a first rotational assembly rotatably mounted to the positioning member. The first rotational assembly comprises a first shaft rotatably mounted to the positioning member, an interference member, a resilient member fixed to the first shaft, and a securing member fixed to the first shaft. The interference member is fixed to the first shaft, and slide relative to the positioning member to engage with or disengage from the positioning member. The resilient member comprises an aseismatic block and a spring clamping a circumference of the aseismatic block. The resilient member is sandwiched between the interference member and the securing member, and the interference member abuts against the aseismatic block.