public static void main(String[] args) {
// TODO Auto-generated method stub
String [] personInfo=new String[3];
Random random=new Random();
// Ctrl+Shift+F
Scanner input = new Scanner(System.in);
String answer="y";
while("y".equals(answer)){
System.out.println("*********欢迎进入奖客富翁系统*********");
System.out.println("1.注册\n2.登录\n3.抽奖");
System.out.println("*******************************");
System.out.print("请选择菜单:");
int num = input.nextInt();
switch (num) {
case 1://注册