身份证号获取出生日期、年龄、性别

本文主要是介绍身份证号获取出生日期、年龄、性别，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

//身份证号获取出生日期

function GetBirthday(psidno) {
       var birthdayno, birthdaytemp
       if (psidno.length == 18) {
           birthdayno = psidno.substring(6, 14)
       } else if (psidno.length == 15) {
           birthdaytemp = psidno.substring(6, 12)
           birthdayno = "19" + birthdaytemp
       } else {
           return "";
       }
       var birthday = birthdayno.substring(0, 4) + "-"
               + birthdayno.substring(4, 6) + "-" + birthdayno.substring(6, 8)
       return birthday;
   }

//生日获取周岁
function ageFamater(value){
           if(null!=value){
               var returnAge;
               var birthYear = value.substr(0,4);
               var birthMonth = value.substr(5,2);
               var birthDay = value.substr(8,2);

               d = new Date();
           var nowYear = d.getYear()+1900;
           var nowMonth = d.getMonth() + 1;
           var nowDay = d.getDate();
           if(nowYear == birthYear){
           returnAge = 0;//同年则为0岁
           }else{
           var ageDiff = nowYear - birthYear ; //年之差
           if(ageDiff > 0) {
           if(nowMonth == birthMonth){
           var dayDiff = nowDay - birthDay;//日之差
           if(dayDiff < 0){
           returnAge = ageDiff - 1;
           }else{
           returnAge = ageDiff ;
           }
           }else{
           var monthDiff = nowMonth - birthMonth;//月之差
           if(monthDiff < 0){
           returnAge = ageDiff - 1;
           }else{
           returnAge = ageDiff ;
           }
           }
           }else{
           returnAge = "";//返回-1 表示出生日期输入错误晚于今天
           }
           }
           return returnAge;//返回周岁年龄
           }
           return "";
       }

//身份证号获取性别

function Getsex(psidno){
var sexno,sex
if(psidno.length==18){
sexno=psidno.substring(16,17)
}else if(psidno.length==15){
sexno=psidno.substring(14,15)
}else{
alert("错误的身份证号码，请核对！")
return false
}
var tempid=sexno%2;
if(tempid==0){
sex='F'
}else{
sex='M'
}
return sex
}