I am sorry for forgetting to attach all files. Now, these files are add
you *did* attach all files. as i explained, they were held in moderation,
since there is a limit for the maximum file size. please pay better
attention.
I have read the read_data command carefully and have to
我已经仔细阅读了这个命令，并且也尝试使用关键词，但是出错。现在的主要问题是例子可以运行，但是我自己的确会得到错误
sorry, cannot follow you there. this all looks "greek" to me. 
axel.