Erlang – 未定义的函数

我正在尝试执行一个非常简单的Erlang代码,但它不起作用.

我试过没有问题地执行了一些你好的世界,但不是我自己的代码.

-module(server).
%% Exported Functions
-export([start/0, process_requests/1]).
%% API Functions
start() ->
    ServerPid = spawn(server, process_requests, [[]]),
    register(myserver, ServerPid).
process_requests(Clients) ->
    receive
         {client_join_req, Name, From} ->
         NewClients = [From|Clients],  %% TODO: COMPLETE
            broadcast(NewClients, {join, Name}),
            process_requests(NewClients);  %% TODO: COMPLETE
        {client_leave_req, Name, From} ->
            NewClients = lists:delete(From, Clients),  %% TODO: COMPLETE
            broadcast(Clients, {leave, Name}),  %% TODO: COMPLETE
            process_requests(NewClients);  %% TODO: COMPLETE
        {send, Name, Text} ->
            broadcast(Clients, {message, Name, Text}),  %% TODO: COMPLETE
            process_requests(Clients)
end.
%% Local Functions
broadcast(PeerList, Message) ->
    Fun = fun(Peer) -> Peer ! Message end,
    lists:map(Fun, PeerList). 

编译结果:

5> c(server).
    {ok,server}
6> server:start().       
** exception error: undefined function server:start/0

最佳答案 您使用c / 1编译代码,但是忘记将其加载到具有l / 1的VM.虽然VM确实自动加载模块(模块尚未加载到VM),但每次编译到新梁时都不会重新加载它们.

如果你在开发中做了很多,你可能想要研究像sync这样的工具.

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