heem宝宝闭眼呼吸
问题描述：
case get(?player_looptaskinfo) of
{targetcnt, taskstar, taskexp} ->
ok;
_ ->
throw("not_found_loop_task_info")
end
在case语句中，这样写，编译时，会提示变量unsafe，解决编译器报错的方法有下面两个：
1、给unsafe的变量赋值
case get(?player_looptaskinfo) of
{targetcnt, taskstar, taskexp} ->
ok;
_ ->
targetcnt=0,taskstar=0,taskexp=0,
throw("not_found_loop_task_info")
end
2、把case语句拆成函数
{targetcnt, taskstar, taskexp} = valid_task_info(get(?player_looptaskinfo))
valid_task_info({_, _, _} = info) -> info;
valid_task_info(_) -> throw("not_found_loop_task_info").
