先调用connect再用readable, writable, exceptional = select.select(inputs, outputs, exceptions, 1)吗

是的，通常在调用 `select.select()` 函数之前需要先调用 `select.connect()` 函数建立连接。然后，通过 `select.select()` 函数检查是否有可读、可写或异常事件发生。该函数的第四个参数是超时时间，表示在等待事件发生时最长等待的时间，单位是秒。在这里，我们将其设置为1秒。如果没有任何事件发生，则该函数将返回空列表。如果有事件发生，则将返回相应的列表。

相关问题

先调用connect再用readable, writable, exceptional = select.select(inputs, outputs, exceptions, 1)没

有问题。这是一种基于select模块的I/O多路复用方式，用于监视一组文件句柄（inputs）的状态，当其中某些文件句柄变为可读、可写或发生异常时，就会被select返回。其中的参数1表示select的超时时间，单位为秒。在这个例子中，我们希望每隔1秒钟检查一次文件句柄的状态，因此将超时时间设置为1秒。如果没有可读、可写或异常的文件句柄，select函数将会阻塞，直到超时或有文件句柄变化。

优化这个方法 this.LinksData = function (m_List,transportID) local curRouteConf = {} local tc= mainPlayer.player:FindClosestCharacter(CharacterType.TreasureCase, transportID,0,32) if tc ~= nil then local endPoint = AllPoints[table_count(AllPoints)] table.remove(AllPoints,table_count(AllPoints)) return endPoint end local tc = nil for i = 0,m_List.Count-1 do local value = Logic.TabConfig.RoutePoint_InfoMgr.instance:GetValueByIndex(i) local Links = ListToTable(value.TeleLinks) local route = nil local moveData = nil if mainPlayer.player.CurrentSite >= 200 then if value.ID % 1000 >= 300 and table_find(Links,transportID) ~= false then route = LogicWorld.DynamicMap.instance.m_RoutePoint:FindRoute(mainPlayer.player.transform.position, Vector3.zero, value.ID, 0) tc = mainPlayer.player:FindClosestCharacter(CharacterType.TreasureCase, value.Data,0,32) if route or tc ~= nil then moveData = LogicWorld.DynamicMap.instance.m_RoutePoint:CreateRouteMoveData(mainPlayer.player, route, Vector3.zero) end if not moveData then local temp = {[1] = value.ID,pos = {value.Position[0],value.Position[1],value.Position[2]}} table.insert(AllPoints,temp) local nextPoint = this.LinksData(m_List,value.Data) if nextPoint == nil then table_removeValue(AllPoints,temp) else return nextPoint end else curRouteConf = {value.ID} return curRouteConf; end end else if value.ID % 1000 < 300 and table_find(Links,transportID) ~= false then route = LogicWorld.DynamicMap.instance.m_RoutePoint:FindRoute(mainPlayer.player.transform.position, Vector3.zero, value.ID, 0) if route then moveData = LogicWorld.DynamicMap.instance.m_RoutePoint:CreateRouteMoveData(mainPlayer.player, route, Vector3.zero) end if not moveData then local temp = {[1] = value.ID,pos = {value.Position[0],value.Position[1],value.Position[2]}} table.insert(AllPoints,temp) local nextPoint = this.LinksData(m_List,value.Data) if nextPoint == nil then table_removeValue(AllPoints,temp) else return nextPoint end else curRouteConf = {value.ID} return curRouteConf; end end end end return nil end

There are a few potential optimizations that could be made to this code. Here are a few suggestions:

1. Avoid using `table_count(AllPoints)` and instead keep track of the count of `AllPoints` as a separate variable. Calling `table_count` on every iteration of the loop could be expensive if `AllPoints` is large.

2. Avoid creating a new `ListToTable` table on every iteration of the loop by moving it outside of the loop and storing it in a variable.

3. Instead of calling `table_find(Links, transportID)` on every iteration of the loop, you could use a `for` loop to iterate over `Links` and check if `transportID` is in the list. This would avoid the overhead of the `table_find` function.

4. Consider using Lua's `pairs` function instead of iterating over a `List` object using an index variable. This can make the code more readable and potentially faster.

5. Use local variables wherever possible to avoid global lookups.

Here's an updated version of the function that incorporates these optimizations:

function this.LinksData(m_List, transportID)
    local curRouteConf = {}
    local AllPoints = {}
    local closestTc = mainPlayer.player:FindClosestCharacter(CharacterType.TreasureCase, transportID, 0, 32)
    if closestTc ~= nil then
        local endPoint = AllPoints[#AllPoints]
        table.remove(AllPoints)
        return endPoint
    end
    local routePointInfoMgr = Logic.TabConfig.RoutePoint_InfoMgr.instance
    local Links = {}
    for _, value in pairs(m_List) do
        local route = nil
        local moveData = nil
        Links = Links or ListToTable(value.TeleLinks)
        if mainPlayer.player.CurrentSite >= 200 then
            if value.ID % 1000 >= 300 then
                for _, link in pairs(Links) do
                    if link == transportID then
                        route = LogicWorld.DynamicMap.instance.m_RoutePoint:FindRoute(mainPlayer.player.transform.position, Vector3.zero, value.ID, 0)
                        local closestTc = mainPlayer.player:FindClosestCharacter(CharacterType.TreasureCase, value.Data, 0, 32)
                        if route or closestTc ~= nil then
                            moveData = LogicWorld.DynamicMap.instance.m_RoutePoint:CreateRouteMoveData(mainPlayer.player, route, Vector3.zero)
                        end
                        if not moveData then
                            local temp = {[1] = value.ID, pos = {value.Position[0], value.Position[1], value.Position[2]}}
                            table.insert(AllPoints, temp)
                            local nextPoint = this.LinksData(m_List, value.Data)
                            if nextPoint == nil then
                                table.remove(AllPoints)
                            else
                                return nextPoint
                            end
                        else
                            curRouteConf = {value.ID}
                            return curRouteConf
                        end
                    end
                end
            end
        else
            if value.ID % 1000 < 300 then
                for _, link in pairs(Links) do
                    if link == transportID then
                        route = LogicWorld.DynamicMap.instance.m_RoutePoint:FindRoute(mainPlayer.player.transform.position, Vector3.zero, value.ID, 0)
                        if route then
                            moveData = LogicWorld.DynamicMap.instance.m_RoutePoint:CreateRouteMoveData(mainPlayer.player, route, Vector3.zero)
                        end
                        if not moveData then
                            local temp = {[1] = value.ID, pos = {value.Position[0], value.Position[1], value.Position[2]}}
                            table.insert(AllPoints, temp)
                            local nextPoint = this.LinksData(m_List, value.Data)
                            if nextPoint == nil then
                                table.remove(AllPoints)
                            else
                                return nextPoint
                            end
                        else
                            curRouteConf = {value.ID}
                            return curRouteConf
                        end
                    end
                end
            end
        end
    end
    return nil
end