身份证号码校验公式

时　间:2011-09-05 11:47:36
作　者:雄鹰   ID：20765  城市：合肥
摘　要:因身份证号码位数较多，在输入的过程中不可避免的会产生输入错误，而在办理保险等重要文件时，号码的错误会导致保险等不成立，造成不必要的损失。本公式可以自动校核输入的错误，减少不必要的错误。
正　文:

=IF(LEN(A1)=0,"空",IF(LEN(A1)=15,"老号",IF(LEN(A1)<>18,"位数不对",IF(CHOOSE(MOD(SUM(MID(A1,1,1)*7+MID(A1,2,1)*9+MID(A1,3,1)*10+MID(A1,4,1)*5+MID(A1,5,1)*8+MID(A1,6,1)*4+MID(A1,7,1)*2+MID(A1,8,1)*1+MID(A1,9,1)*6+MID(A1,10,1)*3+MID(A1,11,1)*7+MID(A1,12,1)*9+MID(A1,13,1)*10+MID(A1,14,1)*5+MID(A1,15,1)*8+MID(A1,16,1)*4+MID(A1,17,1)*2),11)+1,1,0,"X",9,8,7,6,5,4,3,2)= IF(ISNUMBER(RIGHT(A1,1)*1),RIGHT(A1,1)*1,"X"),"正确","错误"))))

=IF((A1="")+(LEN(A1)=15),IF(A1="","空号","老号"),IF(LEN(A1)=18,IF(RIGHT(A1)=MID("10X98765432",MOD(SUMPRODUCT(MID(A1,ROW($1:$17),1)*MOD(2^(18-ROW($1:$17)),11)),11)+1,1),"正确","错误"),"位数不对"))