room:clearAG(source)
你这样试试

YangyanCard = sgs.CreateSkillCard{
name = "YangyanCard",
target_fixed = false,
will_throw = false,
on_use = function(self, room, source, targets)
local fire = source:getPile("fire")
local dest = target[1]
room:fillAG(fire, source)
local id = room:askForAG(source, fire, false, "LuaYangyan")
room:throwCard(id, source)
room:clearAG(source)
local card = sgs.Sanguosha:getCard(id)
local number = card:getNumber()
local count = (number+1) / 2
local theDamage = sgs.DamageStruct()
theDamage.from = source
theDamage.to = dest
theDamage.damage = count
theDamage.nature = sgs.DamageStruct_Normal
room:damage(theDamage)
end
}

YangyanCard = sgs.CreateSkillCard{
name = "YangyanCard",
on_use = function(self, room, source, targets)
local fire = source:getPile("fire")
room:fillAG(fire, source)
local id = room:askForAG(source, fire, false, self:objectName())
room:throwCard(id, source)
room:clearAG(source)
room:damage(sgs.DamageStruct(self:objectName(), source, targets[1], (sgs.Sanguosha:getCard(id):getNumber() + 1) / 2))
end
}
我简化了代码 若还有问题 请重发代码完整版以及描述

LuaXvshi = sgs.CreateTriggerSkill{
name = "LuaXvshi",
frequency = sgs.Skill_NotFrequent,
events = {sgs.DrawNCards, sgs.EventPhaseStart},
on_trigger = function(self, event, player, data)
local room = player:getRoom()
if event == sgs.DrawNCards then
local count = data:toInt()
if count > 0 then
if room:askForSkillInvoke(player, "LuaXvshi", data) then
data:setValue(count - 1)
local judge = sgs.JudgeStruct()
judge.who = player
judge.pattern = "."
judge.good = true
judge.reason = "LuaXvshi"
room:judge(judge)
local card = judge.card
if card:isKindOf("BasicCard") then
room:setTag("Xvshi_count", sgs.QVariant(card:getNumber()))
end
end
end
elseif event == sgs.PhaseStart then
local phase = player:getPhase()
if phase == sgs.Player_Finish then
local tag = room:getTag("Xvshi_count")
room:drawCards(player, tag:toInt(), "LuaXvshi")
room:removeTag("Xvshi_count")
end
end
end
}

用标记代替好了 还有 问问题要说描述