• 在開發中，有時候會涉及到人物身份證登記，那麼怎麼驗證身份證格式是正確的，接下來附上一段JS程式碼驗證身份證格式：

var aCity={11:"北京",12:"天津",13:"河北",14:"山西",15:"內蒙古",
            21:"遼寧",22:"吉林",23:"黑龍江",31:"上海",32:"江蘇",33:"浙江",
            34:"安徽",35:"福建",36:"江西",37:"山東",41:"河南",42:"湖北",
            43:"湖南",44:"廣東",45:"廣西",46:"海南",50:"重慶",51:"四川"
            ,52
 
:"貴州",53:"雲南",54:"西藏",61:"陝西",62:"甘肅",63:"青海",
            64:"寧夏",65:"新疆",71:"臺灣",81:"香港",82:"澳門",91:"國外"}
    function isCardID(sId){
        var iSum=0 ;
        if(!/^\d{17}(\d|x)$/i.test(sId)) return "你輸入的身份證長度或格式錯誤";
        sId=sId.replace(/x$/i,"a");
        if(aCity[parseInt(sId.substr(0,2))]==null
 
) return "身份證號格式錯誤";
        sBirthday=sId.substr(6,4)+"-"+Number(sId.substr(10,2))+"-"+Number(sId.substr(12,2));
        var d=new Date(sBirthday.replace(/-/g,"/")) ;
        if(sBirthday!=(d.getFullYear()+"-"+ (d.getMonth()+1) + "-" + d.getDate()))return "身份證號格式錯誤";
        for(var i = 17;i>=0;i --) iSum += (Math
 
.pow(2,i) % 11) * parseInt(sId.charAt(17 - i),11) ;
        if(iSum%11!=1) return "身份證號格式錯誤！";
        //aCity[parseInt(sId.substr(0,2))]+","+sBirthday+","+(sId.substr(16,1)%2?"男":"女");//此次還可以判斷出輸入的身份證號的人性別
        return true;
    }