png-CRC32校驗

　　官方文檔:

https://www.w3.org/TR/PNG-CRCAppendix.html

CRC32校驗的數據,看原文

A four-byte CRC (Cyclic Redundancy Code) calculated on the preceding bytes in the chunk, including the chunk type field and chunk data fields, but?not?including the length field. The CRC can be used to check for corruption of the data. The CRC is always present, even for chunks containing no data. See 5.5:?Cyclic Redundancy Code algorithm.

難怪把字節寫回去就跪了,crc32校驗碼寫錯了

posted on 2017-11-02 16:40 好吧,就是菜菜 閱讀(...) 評論(...) 編輯 收藏

轉載于:https://www.cnblogs.com/shuiyonglewodezzzzz/p/7772972.html

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