-module(helloworld). -export([start/0]). start() -> Lst1 = [{"a",1},{"b",2},{"c",3}],

-module(helloworld). -export([start/0]). start() -> Lst1 = [{"a",1},{"b",2},{"c",3}],

-module(helloworld). -export([start/0]). start() -> Lst1 = [{"a",1},{"b",2},{"c",3}],

-module(helloworld). -export([start/0]). start() -> Lst1 = [{"a",1},{"b",2},{"c",3}],

-module(helloworld). -export([start/0]). start() -> M1 = #{name=>john,age=>25}, io:fwrite("~w",[map_size(M1)]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[split_binary(<<1,2,3,4,5>>,3)]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[term_to_binary("hello")]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[is_binary(<<1,2,3>>)]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[binary_part(<<1,2,3,4,5>>,{0,2})]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[erlang:memory()]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[erlang:localtime()]).

-module(helloworld). -export([start/0]). start() -> put(1,"One"), put(2,"Two"),

-module(helloworld). -export([start/0]). start() -> put(1,"One"), put(2,"Two"),

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[float(5)]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[element(2, {a, b, c})]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[byte_size(<<1,2,3>>)]).

% Erlang日期 date() -module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[date()]).

-module(helloworld). -export([start/0]). start() -> io:fwrite("~p~n",[tuple_to_list({1,2,3})]),

-module(helloworld). -export([display/1,start/0]). display(N) when N > 10 , is_integer(N) -> io:fwrite("greater then 10");

-module(helloworld). -export([start/0]). start() -> N = 9, if N > 10 -> io:fwrite("N is greater than 10");

-module(helloworld). -export([start/0]). start() -> A = 9, case A of {A} when A>10 -> io:fwrite("The value of A is greater than 10"); _ ->

-module(helloworld). -export([display/1,start/0]). display(N) when N > 10 -> io:fwrite("greater then 10");

-module(helloworld). -export([start/0]). -define(macro1(X,Y),{X+Y}). start() -> io:fwrite("~w",[?macro1(1,2)]).

-module(helloworld). -export([start/0, call/2]). call(Arg1, Arg2) -> io:format("~p ~p~n", [Arg1, Arg2]).

-module(helloworld). -export([start/0, call/2]). call(Arg1, Arg2) -> io:format("~p ~p~n", [Arg1, Arg2]).

-module(helloworld). -export([start/0, call/2]). call(Arg1, Arg2) -> io:format("~p ~p~n", [Arg1, Arg2]).

-module(helloworld). -export([start/0, call/2]). call(Arg1, Arg2) -> io:format("~p ~p~n", [Arg1, Arg2]).

-module(helloworld). -export([start/0]). start() -> Adder = fun(X) -> fun(Y) -> io:fwrite("~p~n",[X + Y]) end end,

-module(helloworld). -export([start/0]). start() -> B = 6, A = fun(X) -> io:fwrite("~p~n",[X]),

-module(helloworld). -export([start/0]). start() -> A = fun(X) -> io:fwrite("~p~n",[X])