规则:http://www.360doc.com/content/11/0310/08/3080113_99760280.shtml
var code = ele.value; var pass = true; var city = {11: "北京",12: "天津",13: "河北",14: "山西",15: "内蒙古",21: "辽宁",22: "吉林",23: "黑龙江 ",31: "上海",32: "江苏",33: "浙江",34: "安徽",35: "福建",36: "江西",37: "山东",41: "河南",42: "湖北 ",43: "湖南",44: "广东",45: "广西",46: "海南",50: "重庆",51: "四川",52: "贵州",53: "云南",54: "西藏 ",61: "陕西",62: "甘肃",63: "青海",64: "宁夏",65: "新疆",71: "台湾",81: "香港",82: "澳门",91: "国外 "}; var pass = true; if (!code || !(/^\d{6}(18|19|20)\d{2}(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i.test(code)||/^\d{6}\d{2}(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])\d{3}$/i.test(code) ) ) { pass = false; } else if (!city[code.substr(0,2)]) { pass = false; } else { if (code.length == 18) { code = code.split(‘‘); var factor = [7,9,10,5,8,4,2,1,6,3,7,2]; //校验位 var parity = [1,‘X‘,2]; var sum = 0; var ai = 0; var wi = 0; for (var i = 0; i < 17; i++) { ai = code[i]; wi = factor[i]; sum += ai * wi; } var last = parity[sum % 11]; if (parity[sum % 11] != code[17]) { pass = false; } } }