Excel判断身份证正误
=IF(E4="","",(IF(MID("10X98765432",MOD(SUMPRODUCT(MID(E4,ROW(INDIRECT("1:17")),1)*2^(18-ROW(INDIRECT("1:17")))),11)+1,1)=MID(E4,18,18),"正确","错误")))=IF(E4="","",(IF(MID("10X98765432",MOD(SUMPRODUCT(MID(E4,ROW(INDIRECT("1:17")),1)*2^(18-ROW(INDIRECT("1:17")))),11)+1,1)=MID(E4,18,18),"正确","错误")))