wp456

摘要： package frank;public class App{ public static void main(String[] args) { String s = "一"; switch(s) { case "一": { System.out.println("今天星期一"); break; } default: { System.out.println("火星人!"); } } Boolean b = true; while(b) { System.out.println("while语句！&quo 阅读全文

摘要： package frank;public class App{ public static void main(String[] args) { int a = 2;//00000000000000000000000000000010 int b = 3;//00000000000000000000000000000011 a = a ^ b;//00000000000000000000000000000001 b = a ^ b;//00000000000000000000000000000010 a = a ^ b;//000000000000000000000000000000... 阅读全文