abstract：<?php$dir = opendir('ceshi');while($row = readdir($dir)){if($row !='.'&&$row!='..'){if(pathinfo($row,PATHINFO_EXTENSION) =='txt'){rename('ceshi/'.$ro
<?php
$dir = opendir('ceshi');
while($row = readdir($dir)){
if($row !='.'&&$row!='..'){
if(pathinfo($row,PATHINFO_EXTENSION) =='txt'){
rename('ceshi/'.$row,'new.txt');
}else{
echo '不存在txt文件';
}
}
}
?>
Correcting teacher：韦小宝Correction time：2019-02-11 09:30:48
Teacher's summary：写的很不错 把目录中常用的函数都使用到了 课后没事还要记得多多练习哦！继续加油吧！
