惊天发现一个好玩的事
public class Main { public static void main(String[] args) { Long a = 33L ; Long b = 33L; System.out.println(a ==b); Long G = 127L; Long H= 127L; System.out.println(G ==H); //自动拆箱是在[-128,127]之间 Long E = 128L; Long F = 128L; System.out.println(E ==F); Long c = 333L; Long d = 333L; System.out.println(c ==d); } }