public override void OnUse(CharacterCard toCard, string skillAppendData)
{
JsonData skillData = JsonMapper.ToObject(skillAppendData);
int damage = Convert.ToInt32(skillData["damage"].ToString());
int energy = Convert.ToInt32(skillData["energy"].ToString());
toCard.ExpendEnergy(energy);//消耗能量
toCard.GetDamage(damage);//造成伤害
}