(PECL ds >= 1.0.0)
Ds\Sequence::pop — Removes and returns the last value
此函数没有参数。
The removed last value.
UnderflowException if empty.
Example #1 Ds\Sequence::pop() example
<?php
$sequence = new \Ds\Vector([1, 2, 3]);
var_dump($sequence->pop());
var_dump($sequence->pop());
var_dump($sequence->pop());
?>
以上例程的输出类似于：
int(3) int(2) int(1)