(self, connID)
return self._connections.get(connID,None)
根据ID获取一条连接
        @param connID: int 连接的id
根据ID获取一条连接
根据ID获取一条连接
def getConnectionByID(self, connID):
        """根据ID获取一条连接
        @param connID: int 连接的id
        """
        return self._connections.get(connID,None)
def getConnectionByID ( self , connID ) : return self . _connections . get ( connID , None )