在ajax文件夹内,有文件:json.php、load.php、script.php
主文件
<?php
$dir = dir("ajax");
while (($file = $dir->read()) !== false)
{
echo "filename: " . $file . "<br />";
}
$dir->close();
它显示:
filename: .
filename: ..
filename: json.php
filename: load.php
filename: script.php
问题:在结果中,前两项是什么意思?.
..
?