1、先引入jquery.js
2、接着引入luhmCheck.js //银行卡号Luhm校验
3、看下面的案例:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>无标题页</title> <script type="text/javascript" src="js/jquery.js"></script> <script type="text/javascript" src="js/luhmCheck.js"></script> </head> <body> <input type="text" id="t_bankno" /> <input type="button" id="btnCheck" value="check" onclick="CheckBankNo($('#t_bankno'));" /> <span id="banknoInfo"></span> </body> </html>
下面是js
<script type="text/javascript">
function CheckBankNo(t_bankno) { var bankno = $.trim(t_bankno.val()); if(bankno == "") { $("#banknoInfo").html("请填写银行卡号"); return false; } if(bankno.length < 16 || bankno.length > 19) { $("#banknoInfo").html("银行卡号长度必须在16到19之间"); return false; } var num = /^d*$/; //全数字 if(!num.exec(bankno)) { $("#banknoInfo").html("银行卡号必须全为数字"); return false; } //开头6位 var strBin = "10,18,30,35,37,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,58,60,62,65,68,69,84,87,88,94,95,98,99"; if(strBin.indexOf(bankno.substring(0, 2)) == -1) { $("#banknoInfo").html("银行卡号开头6位不符合规范"); return false; } //Luhm校验(新) if(!luhmCheck(bankno)) return false; $("#banknoInfo").html("验证通过!"); return true; } </script>
测试卡号:
1、6222600810010710887
2、6225881414207430