UE5 C++动态调用函数方法、按键输入绑定 ，地址前加修饰符

UE5 C++动态调用函数方法、按键输入绑定 ，地址前加修饰符&，这个符号忘记输入的话，编译一直报错不通过

void ASnakeHead::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
Super::SetupPlayerInputComponent(PlayerInputComponent);
PlayerInputComponent->BindAxis(TEXT(“Turn”), this, &ASnakeHead::Turn);//按键输入绑定，地址前加修饰符&
}

void ASnakeHead::BeginPlay()
{

Collision->OnComponentBeginOverlap.AddDynamic(this, &ASnakeHead::OnComponentBeginOverlap);//自身动态添加自定义碰撞，方法名字前加修饰符&
}