关于Flash的坏块的读写问题！

No, it could have more error bits (in a page) than what is described in the specification.

   The phenomenon is that all data I read from a erased bad block are all 0x00;

Maybe your timing is incorrect. You may use logic analyzer to capture the waveform for further analysis.

   No matter what data you write to a page in bad block;it read as all 0x00; I've verified it;  When I write to a good block;the data return is right;