为什么我的ctrl+c后不打印信息

522468522

1. print "Start!!!\n";
   
2. my $number = 1;
   
3. while(1){
   
4.         print "\r$number";
   
5.         $number++;
   
6. }
   
7. 
   
8. 
   
9. sub EXIT_USER{
   
10.         print "You will be exit!!!\n";
    
11.         sleep(10);
    
12.         exit (0);
    
13. }
    
14. 
    
15. $SIG{INT} = \&EXIT_USER;

复制代码

运行后按ctrl+c中断怎么不调用EXIT_USER函数?
C:\Users\Administrator\Desktop>ref.pl
Start!!!
120Terminating on signal SIGINT(2)
121197
C:\Users\Administrator\Desktop>
运行结果如上所示。。