各位老师帮帮忙,非常感谢……
7E 11 00 A9 00 03 01 00 48 8D B6 7F这组数据，7e和7f是开头和结束，8D B6是校验吗，对11 00 A9 00 03 01 00这几个数据进行校验
用查表法应该怎么写代码？
下面是crc表：
CRCString = "&H0000,&H1021,&H2042,&H3063,&H4084,&H50a5,&H60c6,&H70e7,&H8108,&H9129,&Ha14a,&Hb16b,&Hc18c,&Hd1ad,&He1ce,&Hf1ef," & _
         "&H1231,&H0210,&H3273,&H2252,&H52b5,&H4294,&H72f7,&H62d6,&H9339,&H8318,&Hb37b,&Ha35a,&Hd3bd,&Hc39c,&Hf3ff,&He3de, " & _
         "&H2462,&H3443,&H0420,&H1401,&H64e6,&H74c7,&H44a4,&H5485,&Ha56a,&Hb54b,&H8528,&H9509,&He5ee,&Hf5cf,&Hc5ac,&Hd58d, " & _
         "&H3653,&H2672,&H1611,&H0630,&H76d7,&H66f6,&H5695,&H46b4,&Hb75b,&Ha77a,&H9719,&H8738,&Hf7df,&He7fe,&Hd79d,&Hc7bc, " & _
         "&H48c4,&H58e5,&H6886,&H78a7,&H0840,&H1861,&H2802,&H3823,&Hc9cc,&Hd9ed,&He98e,&Hf9af,&H8948,&H9969,&Ha90a,&Hb92b, " & _
         "&H5af5,&H4ad4,&H7ab7,&H6a96,&H1a71,&H0a50,&H3a33,&H2a12,&Hdbfd,&Hcbdc,&Hfbbf,&Heb9e,&H9b79,&H8b58,&Hbb3b,&Hab1a, " & _
         "&H6ca6,&H7c87,&H4ce4,&H5cc5,&H2c22,&H3c03,&H0c60,&H1c41,&Hedae,&Hfd8f,&Hcdec,&Hddcd,&Had2a,&Hbd0b,&H8d68,&H9d49, " & _
         "&H7e97,&H6eb6,&H5ed5,&H4ef4,&H3e13,&H2e32,&H1e51,&H0e70,&Hff9f,&Hefbe,&Hdfdd,&Hcffc,&Hbf1b,&Haf3a,&H9f59,&H8f78, " & _
         "&H9188,&H81a9,&Hb1ca,&Ha1eb,&Hd10c,&Hc12d,&Hf14e,&He16f,&H1080,&H00a1,&H30c2,&H20e3,&H5004,&H4025,&H7046,&H6067, " & _
         "&H83b9,&H9398,&Ha3fb,&Hb3da,&Hc33d,&Hd31c,&He37f,&Hf35e,&H02b1,&H1290,&H22f3,&H32d2,&H4235,&H5214,&H6277,&H7256, " & _
         "&Hb5ea,&Ha5cb,&H95a8,&H8589,&Hf56e,&He54f,&Hd52c,&Hc50d,&H34e2,&H24c3,&H14a0,&H0481,&H7466,&H6447,&H5424,&H4405, " & _
         "&Ha7db,&Hb7fa,&H8799,&H97b8,&He75f,&Hf77e,&Hc71d,&Hd73c,&H26d3,&H36f2,&H0691,&H16b0,&H6657,&H7676,&H4615,&H5634, " & _
         "&Hd94c,&Hc96d,&Hf90e,&He92f,&H99c8,&H89e9,&Hb98a,&Ha9ab,&H5844,&H4865,&H7806,&H6827,&H18c0,&H08e1,&H3882,&H28a3, " & _
         "&Hcb7d,&Hdb5c,&Heb3f,&Hfb1e,&H8bf9,&H9bd8,&Habbb,&Hbb9a,&H4a75,&H5a54,&H6a37,&H7a16,&H0af1,&H1ad0,&H2ab3,&H3a92, " & _
         "&Hfd2e,&Hed0f,&Hdd6c,&Hcd4d,&Hbdaa,&Had8b,&H9de8,&H8dc9,&H7c26,&H6c07,&H5c64,&H4c45,&H3ca2,&H2c83,&H1ce0,&H0cc1, " & _
         "&Hef1f,&Hff3e,&Hcf5d,&Hdf7c,&Haf9b,&Hbfba,&H8fd9,&H9ff8,&H6e17,&H7e36,&H4e55,&H5e74,&H2e93,&H3eb2,&H0ed1,&H1ef0"

没看懂。。。。。。。

查表：
i=instr(1,CRCString,"&H" & 二位代码小写字母）
if i>0 then         '找到
  j=mid(CRCString,i,i+4,2)       '取后二位。
end if

没看懂你上面的代码表。