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1、身份证编码规则（Rulesofidentitycardcoding）IDcardcodingrules,lifeknowledge2008-08-0423:31:27reading3002comment4:bigandsmallFirst,identitycardnumberimplementationstandards:18identitycardstandardsinthenationalqualityandTechnicalSupervisionBureauinJuly1,1999theimplementationoftheGB11643-1999"citizens
2、hipnumber".Therevisedversionof"GB11643-1999GB11643-1989"citizenshipnumber"socialsecuritynumber",whichpointsoutthattheoriginalstandardname"socialsecuritynumber"wasrenamed"citizenshipnumber",andGB11643-1999"citizenshipnumber"fromthedateofimplementationinsteadofGB11643-1989.Two,codingrules:c
3、itizenshipnumberisthecharacteristiccombinationcode,composedofseventeenbitdigitalontologycodeandonebitcheckcode.Thesequenceisfromlefttoright:sixdigitaddresscode,eightdigitbirthdatecode,threedigitsequencecodeandonebitcheckcode,whichcanberepresentedbyletters,suchasABCDEFYYYYMMDDXXXR.Itsmeani
4、ngisasfollows:1.addresscode(ABCDEF):theadministrativedivisioncodeofthecounty(city,flag,district)ofthecodeobjectresidentaccount,whichisexecutedaccordingtotheprovisionsofGB/T2260.2.birthdatecode(YYYYMMDD)said:encodingthebirthyear,month,day,accordingtotheprovisionsofGB/T7408,respectively,wit
5、h4bitsand2bits(lessthantwoand0),2(ibid)digits,notbetweenthedelimiter.3.ordercode(XXX):thesequencenumberofthepersonborninthesameyear,thesamemonthandthesameday.Theoddnumberofthesequencecodeisassignedtothemale,andevennumberisallocatedtothefemale.4.checkcode(R),anumber,throughthefirst17digits
6、accordingtoacertaincalculation.Three.Detailedexplanationofaddresscodemeaning:ThefirstsixIDcardsareareacodes,andweuseABCDEFtorepresentthem.Therulesforinterpretingcodeareasfollows:A:domesticregion1twocitiesinthreeprovincesofNorthChina2northeastthreeprovinces3sixprovincesandonecityinEastChin
7、a4SouthernChinasixprovinces5southwestfourprovincesandonecity6NorthwestFiveProvinces7Taiwan8HongKongandMacaoB(orAB,thetop2):Codesofprovinces(municipalities,autonomousregions,specialadministrativeregions)AccordingtothedemarcationcodedefinedbyA,theprovincialcodesarelis
