网上看到一个,直接点用 validId(num) 函数就行。。。代码贴出来分享学习
var powers=new Array("7","9","10","5","8","4","2","1","6","3","7","9","10","5","8","4","2"); var parityBit=new Array("1","0","X","9","8","7","6","5","4","3","2"); //校验18位的身份证号码 function validId18(_id){ _id=_id+""; var _num=_id.substr(0,17); var _parityBit=_id.substr(17); var _power=0; for(var i=0;i< 17;i++){ //校验每一位的合法性 if(_num.charAt(i)<'0'||_num.charAt(i)>'9'){ return false; break; }else{ //加权 _power+=parseInt(_num.charAt(i))*parseInt(powers[i]); //设置性别 if(i==16&&parseInt(_num.charAt(i))%2==0){ sex="female"; }else{ sex="male"; } } } //取模 var mod=parseInt(_power)%11; if(parityBit[mod]==_parityBit){ return true; } return false; } //校验15位的身份证号码 function validId15(_id){ _id=_id+""; for(var i=0;i<_id.length;i++){ //校验每一位的合法性 if(_id.charAt(i)<'0'||_id.charAt(i)>'9'){ return false; break; } } var year=_id.substr(6,2); var month=_id.substr(8,2); var day=_id.substr(10,2); var sexBit=_id.substr(14); //校验年份位 if(year<'01'||year >'90')return false; //校验月份 if(month<'01'||month >'12')return false; //校验日 if(day<'01'||day >'31')return false; return true; } //这个可以验证15位和18位的身份证,并且包含生日和校验位的验证。 //如果有兴趣,还可以加上身份证所在地的验证,就是前6位有些数字合法有些数字不合法。 function validId(num) { num = num.toUpperCase(); //身份证号码为15位或者18位,15位时全为数字,18位前17位为数字,最后一位是校验位,可能为数字或字符X。 if (!(/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(num))) { return false; } //校验位按照ISO 7064:1983.MOD 11-2的规定生成,X可以认为是数字10。 //下面分别分析出生日期和校验位 var len, re; len = num.length; if (len == 15) { re = new RegExp(/^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/); var arrSplit = num.match(re); //检查生日日期是否正确 var dtmBirth = new Date('19' + arrSplit[2] + '/' + arrSplit[3] + '/' + arrSplit[4]); var bGoodDay; bGoodDay = (dtmBirth.getYear() == Number(arrSplit[2])) && ((dtmBirth.getMonth() + 1) == Number(arrSplit[3])) && (dtmBirth.getDate() == Number(arrSplit[4])); if (!bGoodDay) { return false; } else { //将15位身份证转成18位 //校验位按照ISO 7064:1983.MOD 11-2的规定生成,X可以认为是数字10。 var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'); var nTemp = 0, i; num = num.substr(0, 6) + '19' + num.substr(6, num.length - 6); for(i = 0; i < 17; i ++) { nTemp += num.substr(i, 1) * arrInt[i]; } num += arrCh[nTemp % 11]; return num; } } if (len == 18) { re = new RegExp(/^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/); var arrSplit = num.match(re); //检查生日日期是否正确 var dtmBirth = new Date(arrSplit[2] + "/" + arrSplit[3] + "/" + arrSplit[4]); var bGoodDay; bGoodDay = (dtmBirth.getFullYear() == Number(arrSplit[2])) && ((dtmBirth.getMonth() + 1) == Number(arrSplit[3])) && (dtmBirth.getDate() == Number(arrSplit[4])); if (!bGoodDay) { return false; } else { //检验18位身份证的校验码是否正确。 //校验位按照ISO 7064:1983.MOD 11-2的规定生成,X可以认为是数字10。 var valnum; var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'); var nTemp = 0, i; for(i = 0; i < 17; i ++) { nTemp += num.substr(i, 1) * arrInt[i]; } valnum = arrCh[nTemp % 11]; if (valnum != num.substr(17, 1)) { return false; } return num; } } return false; }