diff --git a/src/actions/DinerAction.lua b/src/actions/DinerAction.lua
index e7aae65..f784abc 100644
--- a/src/actions/DinerAction.lua
+++ b/src/actions/DinerAction.lua
@@ -11,6 +11,10 @@ function _M.addSellRpc( agent, data )
 	local msg = MsgPack.unpack(data)
 	for _,sellData in pairs(msg) do
 		local slot = sellData.slot
+		local sells = json.decode(role.dinerData:getProperty("sells"))
+		if sells[slot] and sells[slot].count and sells[slot].count ~= 0 then
+			return 0
+		end 
 		if math.illegalNum(slot, 1, role.dinerData:getMaxSlots()) then
 			return 1
 		end
@@ -65,19 +69,17 @@ function _M.addSellRpc( agent, data )
 			role.dinerData:notifyUpdateProperty("order", role.dinerData:getProperty("order"))
 		end
 
-		local sells = json.decode(role.dinerData:getProperty("sells"))
+		sells = json.decode(role.dinerData:getProperty("sells"))
 		if not sells[slot] then
 			sells[slot] = {
-				dish = dish,
-				level = dishLevel,
 				reward = "",
-				count = 0,
 			}
 		end
-		local sell = sells[slot]
-		sell.count = sell.count + count
-		sell.time = skynet.timex() - calSell.deltaTime
-		sell.hot = role.dinerData:getProperty("hot"):getv(sell.dish, 0)
+		sells[slot].dish = dish
+		sells[slot].level = dishLevel
+		sells[slot].count = count
+		sells[slot].time = skynet.timex() - calSell.deltaTime
+		sells[slot].hot = role.dinerData:getProperty("hot"):getv(sells[slot].dish, 0)
 		role.dinerData:updateProperty({field = "sells", value = json.encode(sells)})
 	end
 	SendPacket(actionCodes.Diner_addSellRpc, "")
@@ -120,7 +122,8 @@ function _M.removeSellRpc( agent, data )
 		role:addItem({itemId = k,count = sum})
 		reward[k] = sum
 	end
-	sells[slot] = nil
+
+	sells[slot].count = 0
 	role.dinerData:updateProperty({field = "sells", value = json.encode(sells)})
 	SendPacket(actionCodes.Diner_removeSellRpc, MsgPack.pack({reward = reward}))
 	return true
--
libgit2 0.21.2