1.使用throw 抛出异常，结束判断，立即返回
check(Player, Goods, Count) ->
try
Info = Player#player.info,
Time = misc:seconds(),
case map_api:check_goods(Info#info.map_id, Goods#goods.goods_id) of
?true ->
?ok = check_count(Goods#goods.count, Count),
?ok = check_pro(Info#info.pro, Goods#goods.pro),
?ok = check_sex(Info#info.sex, Goods#goods.sex),
?ok = check_lv(Info#info.lv, Goods#goods.lv),
?ok = check_time(Time, Goods#goods.start_time, Goods#goods.end_time),
?ok = check_vip(Player#player.vip, Goods#goods.vip),
?ok = check_country(Info#info.country, Goods#goods.country),
?ok;
?false ->
{?error, 110}
end
catch
throw:Return ->
Return;
_:_ ->
{?error, unknow}
end.
%% 检查物品数量
check_count(Count, RequestCount) when 0 =< Count andalso Count =< RequestCount -> ?ok;
check_count(_, _) -> throw({?error, 110}).
%% 检查职业
check_pro(_Pro, ?CONST_SYS_PRO_NULL) -> ?ok;
check_pro(Pro, Pro) -> ?ok;
check_pro(_, _) -> throw({?error, ?EGOODS_PROFESION_NOT_FIT}).
%% 检查性别
check_sex(_Sex, ?CONST_SYS_SEX_NULL) -> ?ok;
check_sex(Sex, Sex) -> ?ok;
check_sex(_, _) -> throw({?error, 110}).
%% 检查等级
check_lv(_Lv, 0) -> ?ok;
check_lv(Lv, RequestLv) when Lv >= RequestLv -> ?ok;
check_lv(_, _) -> throw({?error, ?EGOODS_LV_NOT_FIT}).
%% 检查有效期
check_time(_Time, 0, 0) -> ?ok;
check_time(Time, 0, EndTime) when Time =< EndTime -> ?ok;
check_time(Time, StartTime, 0) when Time >= StartTime -> ?ok;
check_time(Time, StartTime, EndTime) when Time >= StartTime andalso Time =< EndTime -> ?ok;
check_time(_, _, _) -> throw({?error, 110}).
%% 检查VIP
check_vip(_Vip, 0) -> ?ok;
check_vip(Vip, RequestVip) when Vip >= RequestVip -> ?ok;
check_vip(_, _) -> throw({?error, 110}).
%% 检查国家
check_country(_Country, 0) -> ?ok;
check_country(Country, Country) -> ?ok;
check_country(_, _) -> throw({?error, 110}).2，使用多层匹配，减少嵌套。
Guild = ets_api:lookup(?CONST_ETS_GUILD, GuildId),
GulildPlayer = Player#player.guild,
GuildMember = ets_api:lookup(?CONST_ETS_GUILD_MEMBER, UserId),%%申请人
ApplyList = Guild#ets_guild.apply ,
Apply = lists:keyfind(UserId, #apply.player_id, ApplyList),
case {GulildPlayer#guild.guild_pos >?CONST_GUILD_POSITION_ELDER,
Guild#ets_guild.num_current >= Guild#ets_guild.num_limit,
Apply#apply.is_cancel =:= 1,
is_record(GuildMember, ets_guild_member) andalso GuildMember#ets_guild_member.guild_id > 0} of
{?true,_,_,_} -> %%权限不足
TipPacket = message_api:msg_notice(?TIP_GUILD_DEALAPPLY_NOPREMISS),
misc_packet:send(Player#player.net_pid, TipPacket);
{_,?true,_,_} -> %%成员上限
TipPacket = message_api:msg_notice(?TIP_GUILD_DEALAPPLY_MEMBEROVER),
misc_packet:send(Player#player.net_pid, TipPacket);
{_,_,?true,_} -> %%取消申请
TipPacket = message_api:msg_notice(?TIP_GUILD_DEALAPPLY_CANCELAPPLY),
misc_packet:send(Player#player.net_pid, TipPacket);
{_,_,_,?true} -> %%已加入军团
TipPacket = message_api:msg_notice(?TIP_GUILD_DEALAPPLY_REJOIN),
misc_packet:send(Player#player.net_pid, TipPacket);
{?false,?false,?false,?false} ->
GuildId = Guild#ets_guild.id,
GuildName = Guild#ets_guild.name,
