Perl last statement

Perl last statement Perl loop

The Perl last statement is used to exit the loop statement block, thereby ending the loop, the statement after the last statement is no longer executed, and the continue statement block is no longer executed.

Grammar

The syntax format looks like this: 

last [LABEL];

Flow chart

Perl last statement

Instance 

#!/usr/bin/perl

$a = 10;
while( $a < 20 ){
   if( $a == 15)
   {
       # 退出循环
       $a = $a + 1;
       last;
   }
   print "a 的值为: $a\n";
   $a = $a + 1;
}

The above procedure is performed and the output is: 

a 的值为: 10
a 的值为: 11
a 的值为: 12
a 的值为: 13
a 的值为: 14

Perl last statement Perl loop