求助 求帮忙

controller.cs(92,11): error CS0120: error CS0120: An object reference is required to access non-static member `UnityEngine.Animation.Play()'
void SetGameState(int state)
{
switch(state)
{
case HERO_IDLE:
//播放站立动画
point = transform.position;
这里是092行 Animation.Play("idle");
break;
case HERO_WALK:
//播放行走动画
Animation.Play("walk");
break;
case HERO_RUN:
//播放奔跑动画
Animation.Play("run");
break;
}
gameState = state;
}