身份证号码验证详解编程语言

<html> 
<head> 
<title> 
        大陆身份证号验证 
</title> 
<script> 
        function checkDlIdNumber(){ 
                var idNumber = document.getElementById("idNumber").value; 
                if(isStandard(idNumber)){ 
                        alert("身份证号符合格式!"); 
                }else{ 
                        alert("请输入正确的身份证号!"); 
                } 
        } 
         
        function isStandard(idNumber){ 
                 
                if (idNumber.length < 15 || idNumber.length == 16 || idNumber.length == 17 || idNumber.length > 18){ 
                        return false; 
                } 
                var result; 
                if (idNumber.length == 18){ 
                        result = idNumber.substring(0, 17); 
                }else{ 
                        result = idNumber.substring(0, 6) + "19" + idNumber.substring(6, 12); 
                } 
                if (!isNumber(result)){ 
                        return false; 
                } 
 
 
                var strBirthDay = result.substr(6, 4) + "-" + Number(result.substr(10, 2)) + "-" + Number(result.substr(12, 2)); 
                var d = new Date(strBirthDay.replace(/-/g, "/")); 
                var nowTime = new Date(); 
                var age = nowTime.getFullYear() - result.substr(6, 4); 
                if (strBirthDay != (d.getFullYear() + "-" + (d.getMonth() + 1) + "-" + d.getDate())){ 
                        return false; 
                } 
 
 
                var lastArr = new Array("1", "0", "x", "9", "8", "7", "6", "5", "4", "3", "2"); 
                var Wi = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); 
                var k, totalResult = 0; 
                for (k = 0; k < 17; k++){ 
                        totalResult = totalResult + parseInt(result.substr(k, 1)) * Wi[k]; 
                } 
                var modValue = totalResult % 11; 
                var lastNum = lastArr[modValue]; 
                result = result + lastNum; 
                if ((idNumber.length == 18) && (idNumber.toLowerCase() != result)){ 
                        return false; 
                } 
                return true; 
        } 
         
        function isNumber(str) { 
                if (str.length > 0) { 
                        var reg = //D/; 
                        return str.match(reg) == null; 
                } else { 
                        return true 
                } 
        } 
         
        function clearValue(the){ 
                if(the.value == '请输入身份证号...'){ 
                        the.value=''; 
                        the.style.cssText = "color:#000000;"; 
                } 
        } 
        function returnValue(the){ 
                if(the.value == ''){ 
                        the.value='请输入身份证号...'; 
                        the.style.cssText = "color:#cccccc;"; 
                } 
        } 
</script> 
</head> 
<body> 
        <input id="idNumber" type="text" value="请输入身份证号..." onfocus="clearValue(this);" onblur="returnValue(this);"/> 
        <input type="button" value="验证" onclick="checkDlIdNumber();"/> 
</body> 
<script> 
        //第一次加载页面的时候输入框内颜色为灰色 
        var idNumberObj = document.getElementById("idNumber"); 
        if(idNumberObj.value == '请输入身份证号...'){ 
                idNumberObj.style.cssText = "color:#cccccc;"; 
        } 
</script> 
</html>

原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/16356.html

(0)
上一篇 2021年7月19日
下一篇 2021年7月19日

相关推荐

发表回复

登录后才能评论