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php代码看得懂却写不出来解决方法

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Jun 13, 2016 am 11:40 AM

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php代码看得懂却写不出来
php代码看得懂却写不出来，为什么，我在w3school中学习，看到一个上传文件的代码，该代码中具有限制用户上传不指定的格式的功能。代码写得非常清楚易懂。
当我关闭chrome浏览器，尝试自己写的时候，却出现了巨大的困难，我该如何解决这样的局面，请php前辈们指点，我是真想学好它。。

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