1 private int GetAgeBycode(string b_car_code) 2         { 3             string birthday = ""; 4             //处理18位的身份证号码从号码中得到生日和性别代码 5             if (b_car_code.Length == 18) 6             { 7                 birthday = b_car_code.Substring(6, 4) + "-" + b_car_code.Substring(10, 2) + "-" + b_car_code.Substring(12, 2); 8             } 9             //处理15位的身份证号码从号码中得到生日和性别代码10             if (b_car_code.Length == 15)11             {12                 birthday = "19" + b_car_code.Substring(6, 2) + "-" + b_car_code.Substring(8, 2) + "-" + b_car_code.Substring(10, 2);13             }14             return birthday;15 16         }