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C#身份证验证的代码一例
来源: 互联网 发布时间:2014-08-30
本文导语: 代码如下: ///验证身份证 ///by http://www. private string CheckCidInfo(string cid) { string[] aCity = new string[] { null, null, null, null, null, null, null, null, null, null, null, "北京", "天津", "河北", "山西", "内蒙古", null, null, null, null, null, "辽宁", "吉林...
代码如下:
///验证身份证 ///by http://www. private string CheckCidInfo(string cid) { string[] aCity = new string[] { null, null, null, null, null, null, null, null, null, null, null, "北京", "天津", "河北", "山西", "内蒙古", null, null, null, null, null, "辽宁", "吉林", "黑龙江", null, null, null, null, null, null, null, "上海", "江苏", "浙江", "安微", "福建", "江西", "山东", null, null, null, "河南", "湖北", "湖南", "广东", "广西", "海南", null, null, null, "重庆", "四川", "贵州", "云南", "西藏", null, null, null, null, null, null, "陝西", "甘肃", "青海", "宁夏", "新疆", null, null, null, null, null, "台湾", null, null, null, null, null, null, null, null, null, "香港", "澳门", null, null, null, null, null, null, null, null, "国外" }; double iSum = 0; System.Text.RegularExpressions.Regex rg = new System.Text.RegularExpressions.Regex(@"^d{17}(d|x)$"); System.Text.RegularExpressions.Match mc = rg.Match(cid); if (!mc.Success) { return ""; } cid = cid.ToLower(); cid = cid.Replace("x", "a"); if (aCity[int.Parse(cid.Substring(0, 2))] == null) { return "非法地区"; } try { DateTime.Parse(cid.Substring(6, 4) + "-" + cid.Substring(10, 2) + "-" + cid.Substring(12, 2)); } catch { return "非法生日"; } for (int i = 17; i >= 0; i--) { iSum += (System.Math.Pow(2, i) % 11) * int.Parse(cid[17 - i].ToString(), System.Globalization.NumberStyles.HexNumber); } if (iSum % 11 != 1) { return ("非法证号"); } return (aCity[int.Parse(cid.Substring(0, 2))] + "," + cid.Substring(6, 4) + "-" + cid.Substring(10, 2) + "-" + cid.Substring(12, 2) + "," + (int.Parse(cid.Substring(16, 1)) % 2 == 1 ? "男" : "女")); }