using System; using System.Threading; namespace KeyboardRecord { /// <summary> /// Class1 的摘要说明. /// </summary> class Class1 { /// <summary> /// 应用程序的主入口点. /// </summary> [STAThread] static void Main( string[] args ) { // // TODO: 在此处添加代码以启动应用程序 // string a = Console.ReadLine( ); if ( a.Length!=15 ) { Console.WriteLine( "Please input correct idnumber" ); } else { Console.WriteLine( getCheckCode( a ) ); } } static string getCheckCode( string sfzh ) { char[] strJiaoYan = {''1'', ''0'', ''X'', ''9'', ''8'', ''7'', ''6'', ''5'', ''4'', ''3'', ''2''}; int[] intQuan = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1}; string strTemp; int intTemp = 0; strTemp = sfzh.Substring( 0,6 ) + "19" + sfzh.Substring( 6 ); for ( int i=0;i<=strTemp.Length-1;i++ ) { intTemp += int.Parse( strTemp.Substring( i,1 ) )*intQuan[i]; } intTemp = intTemp % 11; return strTemp + strJiaoYan[intTemp]; } } }