生产与消费

public static void main(String[] args) {
String s = s(() -> {
return "是";
});
System.out.println(s);

}
public static String s(Supplier<String> pp){
    return pp.get();
}

public static void main(String[] args) {
p("张三", System.out::println, System.out::println, System.out::println);
}
public static void p(String a, Consumer name1, Consumer name2, Consumer name3){
name1.andThen(name2.andThen(name3)).accept(a);
}