根据身份证号码计算出生日期和年龄 

<html>
<head>
<script type="text/javascript" src="./jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("#b01").click(function(){
  
  var age= GetAge($("#idCard").val());
  $("#age").val(age);
  
  var birthDay= GetBirthDay($("#idCard").val());
  $("#birthDay").val(birthDay);
  
  });
});


    //根据身份证号码获取年龄
    function GetAge(identityCard) {
        var len = (identityCard + "").length;
        if (len == 0) {
            return 0;
        } else {
            if ((len != 15) && (len != 18))//身份证号码只能为15位或18位其它不合法
            {
                return 0;
            }
        }
        var strBirthday = "";
        if (len == 18)//处理18位的身份证号码从号码中得到生日和性别代码
        {
            strBirthday = identityCard.substr(6, 4) + "/" + identityCard.substr(10, 2) + "/" + identityCard.substr(12, 2);
        }
        if (len == 15) {
            strBirthday = "19" + identityCard.substr(6, 2) + "/" + identityCard.substr(8, 2) + "/" + identityCard.substr(10, 2);
        }
        //时间字符串里，必须是“/”
        var birthDate = new Date(strBirthday);
        var nowDateTime = new Date();
        var age = nowDateTime.getFullYear() - birthDate.getFullYear();
        //再考虑月、天的因素;.getMonth()获取的是从0开始的，这里进行比较，不需要加1
        if (nowDateTime.getMonth() < birthDate.getMonth() || (nowDateTime.getMonth() == birthDate.getMonth() && nowDateTime.getDate() < birthDate.getDate())) {
            age--;
        }
        return age;
    }
    
//根据身份证号码获取出生日期
function GetBirthDay(identityCard) {
    var len = (identityCard + "").length;
    if (len == 0) {
        return 0;
    } else {
        if ((len != 15) && (len != 18))//身份证号码只能为15位或18位其它不合法
        {
            return 0;
        }
    }
    var strBirthday = "";
    if (len == 18)//处理18位的身份证号码从号码中得到生日和性别代码
    {
        strBirthday = identityCard.substr(6, 4) + "/" + identityCard.substr(10, 2) + "/" + identityCard.substr(12, 2);
    }
    if (len == 15) {
        strBirthday = "19" + identityCard.substr(6, 2) + "/" + identityCard.substr(8, 2) + "/" + identityCard.substr(10, 2);
    }
    //时间字符串里，必须是“/”
    var birthDate = new Date(strBirthday);
    
    var seperator1 = "-";
    var year = birthDate.getFullYear();
    var month = birthDate.getMonth() + 1;
    var strDate = birthDate.getDate();
    if (month >= 1 && month <= 9) {
        month = "0" + month;
    }
    if (strDate >= 0 && strDate <= 9) {
        strDate = "0" + strDate;
    }
    var birthDay = year + seperator1 + month + seperator1 + strDate;
    
    return birthDay;
}

</script>
</head>
<body>

<div id="myDiv"><h2>通过 AJAX 改变文本</h2></div>

身份证号码：<input id='idCard' type='text' />
出生年月日：<input id='birthDay' type='text' />
年龄：<input id='age' type='text' />
<button id="b01" type="button">根据身份证号码获取年龄</button>

</body>
</html>

 

感谢：https://www.cnblogs.com/ericli-ericli/p/4716761.html

https://www.cnblogs.com/wxdblog/p/6888240.html

 

posted @ 2019-01-09 14:36  蜗牛的礼物  阅读(1059)  评论(0)  编辑  收藏  举报