公民身份号码是特征组合码，由十七位数字本体码和一位数字校验码组成.排列顺序从左至右依次为:六位数字地址码,八位数字出生日期码,三位数字顺序码和一位数字校验码。本程序实现了18位身份证号码验证的功能-Feature combination citizenship code number is by the number seventeen digit body code and check code composition. Arranged in order from left to right: six-digit address code, eight-digit code dates of birth, three-digit sequence digit code and check code. This program implements the 18 functional verification ID number