js验证营业执照号码是否合规

需求：最近要做实名验证的功能，但是验证我们要验证严谨一点，参考了网上关于营业执照号码规则和一些大侠的代码的代码，总结一下.

营业执照号码规则：规则

代码：

//方法一：
function checkLicense(code){

    var tip = "OK";

    var pass= true;

    if(code.length != 18){

        tip = "社会信用代码长度错误！";

        pass = false;

    }

    var reg = /^([159Y]{1})([1239]{1})([0-9]{6})([0-9ABCDEFGHJKLMNPQRTUWXY]{9})([0-9ABCDEFGHJKLMNPQRTUWXY]{1})$/;

    if(!reg.test(code)){

        tip = "社会信用代码校验错误！";

        pass = false;

    }

    //不用I、O、S、V、Z

    var str = '0123456789ABCDEFGHJKLMNPQRTUWXY';

    var ws =[1,3,9,27,19,26,16,17,20,29,25,13,8,24,10,30,28];

    var codes  = new Array();

    var sum = 0;

    codes[0] = code.substr(0,code.length-1);

    codes[1] = code.substr(code.length-1,code.length);

    for(var i=0;i<codes[0].length;i++){

        var Ancode = codes[0].charAt(i);

        var Ancodevalue = str.indexOf(Ancode);

        sum += Ancodevalue * ws[i];

    }

    var indexOfc18 = 31 - (sum % 31);

    var c18 = str.charAt(indexOfc18);

    if(c18 != codes[1]){

        tip = "社会信用代码有误！";

        pass = false;

    }

    return {'errCode':pass, 'errMsg':tip};

}

//方法二

function checkLicense(code){

    var tip = "OK";

    var pass= true;

　　var patrn = /^[0-9A-Z]+$/;

    //18位校验及大写校验

    if ((code.length != 18) || (patrn.test(code) == false))

    {

        alert("不是有效的统一社会信用编码！");

    }

    else

    {

        var Ancode;//统一社会信用代码的每一个值

        var Ancodevalue;//统一社会信用代码每一个值的权重

        var total = 0;

        var weightedfactors = [1, 3, 9, 27, 19, 26, 16, 17, 20, 29, 25, 13, 8, 24, 10, 30, 28];//加权因子

        var str = '0123456789ABCDEFGHJKLMNPQRTUWXY';

        //不用I、O、S、V、Z

        for (var i = 0; i < code.length - 1; i++)

        {

            Ancode = code.substring(i, i + 1);

            Ancodevalue = str.indexOf(Ancode);

            total = total + Ancodevalue * weightedfactors[i];

            //权重与加权因子相乘之和

        }

        alert(total);

        var logiccheckcode = 31 - total % 31;

        if (logiccheckcode == 31)

        {

            logiccheckcode = 0;

        }

        var Str = "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,J,K,L,M,N,P,Q,R,T,U,W,X,Y";

        var Array_Str = Str.split(',');

        logiccheckcode = Array_Str[logiccheckcode];

        alert(logiccheckcode);

        var checkcode = code.substring(17, 18);

        if (logiccheckcode != checkcode)

        {

            pass = false;

            tip = "不是有效的统一社会信用编码！";

            alert("不是有效的统一社会信用编码！");

        }

    }

    return {'errCode':pass, 'errMsg':tip};

}

js验证营业执照号码是否合规的相关教程结束。