身份证号码中校验码的验证测试程序
<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>三十客-身份证号码中校验码的验证测试程序</title> </head> <body> <div id="main"></div> <script> console.log = function(val) { document.getElementById("main").innerHTML += val +"<br />"; } var checkCode = function (val) { var p = /^[1-9]\d{5}(18|19|20)\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/; var factor = [ 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 ]; var parity = [ 1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2 ]; var code = val.substring(17); if(p.test(val)) { var sum = 0; for(var i=0;i<17;i++) { sum += val[i]*factor[i]; } if(parity[sum % 11] == code.toUpperCase()) { return true; } } return false; } // 输出 true, 校验码相符 console.log(checkCode("11010519491231002X")); // 输出 false, 校验码不符 console.log(checkCode("110105194912310021")); </script> </body> </html>