php打开psd文件
我很抱歉，这与其说是一个编程问题，不如说是一个一般信息问题。
我确实了解 C 和 C++ 以及网络语言，但我遇到了一个提取 .psd 图像的 php 类。我心想，作为一个缺乏经验的程序员，我什至不知道从哪里开始。 如何发现特定类型的文件的结构？您如何找到处理文件字节的方法？因为实际上我唯一的想法就是致电 Adobe。
感谢您的帮助和建议！
I apologize that this isn't so much a programming question as it is a general information question.
I do know C and C++ as well as my web languages, but I ran across a php class that extracted a .psd image. And I thought to myself, as a somewhat inexperienced programmer, I would have no idea where to even start there.
How does one discover how a particular type of file is structured? How would you find how to process the bytes of the file? Because really my only idea would be to call Adobe.
Thanks for your help and advice!
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获取 SDK 并阅读文档。
如果文件格式有记录，您可以阅读文档/规范。这是最常见的方式。否则你必须对其进行逆向工程。
Get the SDK and read the documentation.
If the file format is documented, you can read the documentation / specification. This is the most common way. Otherwise you have to reverse engineer it.