GRPC中无法存储变量地址或者值？

**在RPC函数中无法存储局部变量的值和地址** ``` protobuf文件 syntax = "proto3"; package message; option go_package = "proto/;message"; service CreatorRoom{ rpc Creator (CreatorRoomReq) returns (CreatorRoomRes); rpc JoinRoom (JoinRoomReq) returns (JoinRoomRes); }``` 所使用的结构体 ``` type ClothesRoom struct { RoomId string Space string Information map[string] *WholeRoom Identification bool TimeOut bool CountDown int WhoShot string CardLib map[string][]int } func (rm *ClothesRoom) CreatorRoom(roomName string){ rm.RoomId = roomName rm.Space = "55555555" rm.Identification = false rm.TimeOut= false rm.CountDown= -1 rm.CardLib= make(map[string][]int) } ``` **grpc处理请求函数** ``` func (poto * ProtoMessage) JoinRoom(cxt context.Context,in *pd.JoinRoomReq)(*pd.JoinRoomRes,error) { coco:= new(ClothesRoom) coco.CreatorRoom("lindejiang") //UserList.GameServerMapList.RoomList是全局变量 UserList.GameServerMapList.RoomList[joinRoom.RoomId] = coco } ``` 下次再进来这个函数打印UserList.GameServerMapList.RoomList里面存的值得时候发现 里面存储的内存地址无效了，也就是出了JoinRoom这个函数之后就被gc了，我也尝试闭包也是会这样 上面UserList.GameServerMapList.RoomList[joinRoom.RoomId] = coco 出了函数之后就gc掉了 这就导致map里面存储的内存地址无效了导致报错 ``` key：888999这个在别的函数存储一直都可以访问，key:545783是在grpc JoinRoom函数里存储的，出了函数就被gc掉了，内存地址是无效的，导致下面的错误 map[545783:0xc000208320 888999:0xc000096000] panic: runtime error: invalid memory address or nil pointer dereference [signal 0xc0000005 code=0x0 addr=0x8 pc=0x8ece5f] ```