Description: A recent study of some breakthroughs in validation codes is documented. On the one hand is to study these days summary of knowledge to help you understand; on the other hand, want students to study this aspect of help; also hope to attract the attention of the administrators in the website, provide the verification code more into account. Because just contact this knowledge, understanding is simple, there are errors may exist, please paizhuan.
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ceshi\4.jpeg
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ceshi\test.php
ceshi\Valite.php
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