<!DOCTYPE html><html><head><title>提取身份证号</title><meta charset="UTF-8"><meta name="viewport" content="width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/></head><body><div id="one">林芳德 3023321295660x 男 26岁 李云飞 30233212956601 女 30岁 龚丽芬 30233212956602 男 28岁 王晋珺 3023321295660X 男 20岁 </div><script type="text/javascript">function getIDcard(string){var reg=/[0-9,X,x]/;var num = 0;var IDarr = "";var arr = string.split("");for (var i = 0; i < arr.length; i++) {var item = arr[i];if(reg.test(item)){num++;IDarr += ""+item;if(num == 18){console.log(IDarr.toString())}}else{num = 0;IDarr = "";}}}var stringone = document.getElementById("one").innerHTML;getIDcard(stringone);</script></body></html>
