php函数递归
- <?
- function f($a)
- {
- if($a<10)
- {
- echo "before:".$a."</br>";
- f($a+1);
- echo "after:".$a."</br>";
- }
- }
- f(0);
- ?>
before:0
before:1
before:2
before:3
before:4
before:5
before:6
before:7
before:8
before:9
after:9
after:8
after:7
after:6
after:5
after:4
after:3
after:2
after:1
after:0
不明白after后面是怎么回事,求解啊
作者: puffbaby 发布时间: 2011-05-11
after:9在所有f(9)执行之后才打印的,然后是after:8.........
明白没?
明白没?
作者: stabilization 发布时间: 2011-05-11