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PHPz批改状态：合格
老师批语：
<?php$keys=['123456','kdkfkd','slffsdljf'];?><!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>遍历数组</title></head><body><h2><? echo'php遍历数组'?></h2><ol><? foreach($keys as $key):?><li><?echo $key?></li><?endforeach?></ol><script type='text/javascript'>let keys=['123456','kdkfkd','slffsdljf'];for (let i = 0; i < keys.length; i++) {alert( keys[i]);}</script></body></html>
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