如何有效的缩短此语句

Question

using System;using System.IO;using System.Text; namespace ConsoleApplication1{ class Program { private static string code1 = ""; private static string code2 = ""; private static string code3 = ""; private static string code4 = ""; private static int ge2 = 65; private static int ge3 = 65; private static int ge4 = 65; private static int ge5 = 65; private static int shi2 = 65; private static int shi3 = 65; private static int shi4 = 65; private static int shi5 = 65; private static int bai2 = 65; private static int bai3 = 65; private static int bai4 = 65; private static int bai5 = 65; static void Main(string[] args) { const string aname = "A"; const string bname = "B"; const string cname = "C"; const string dname = "D"; exitPoint: Console.WriteLine("\n请输入您需要的code的选项!\nA:医院code,B:药店code,C:经销商code,D:其它code"); string name; name = Console.ReadLine(); switch (name.ToUpper()) { case aname: { qk1(); goto exitPoint; } case bname: { qk2(); goto exitPoint; } case cname: { qk3(); goto exitPoint; } case dname: { qk4(); goto exitPoint; } default: Console.WriteLine("输入错误，请重新输入！"); goto exitPoint; } } private static void qk4() { TXTcls txt = new TXTcls(); StringBuilder temp = new StringBuilder(); txt.ReadConfig("D", "D", "", temp, 255, ".\\TestFile.ini"); if (temp.Length != 0) { ge5 = Convert.ToInt32(temp[3]); shi5 = Convert.ToInt32(temp[2]); bai5 = Convert.ToInt32(temp[1]); ge5++; } if (ge5 == 91) { shi5++; ge5 = 65; } if (shi5 == 91) { bai5++; shi5 = 65; } char ge1 = Convert.ToChar(ge5); char shi1 = Convert.ToChar(shi5); char bai1 = Convert.ToChar(bai5); string code = "Z" + bai1 + shi1 + ge1; txt.Writeconfig("D", "D", code, ".\\TestFile.ini"); code4 = code; Console.WriteLine("{0}", code4); } private static void qk3() { TXTcls txt = new TXTcls(); StringBuilder temp = new StringBuilder(); txt.ReadConfig("C", "C", "", temp, 255, ".\\TestFile.ini"); if (temp.Length != 0) { ge4 = Convert.ToInt32(temp[3]); shi4 = Convert.ToInt32(temp[2]); bai4 = Convert.ToInt32(temp[1]); ge4++; } if (ge4 == 91) { shi4++; ge4 = 65; } if (shi4 == 91) { bai4++; shi4 = 65; } char ge1 = Convert.ToChar(ge4); char shi1 = Convert.ToChar(shi4); char bai1 = Convert.ToChar(bai4); string code = "V" + bai1 + shi1 + ge1; txt.Writeconfig("C", "C", code, ".\\TestFile.ini"); code3 = code; Console.WriteLine("{0}", code3); } private static void qk2() { TXTcls txt = new TXTcls(); StringBuilder temp = new StringBuilder(); txt.ReadConfig("B", "B", "", temp, 255, ".\\TestFile.ini"); if (temp.Length != 0) { ge3 = Convert.ToInt32(temp[3]); shi3 = Convert.ToInt32(temp[2]); bai3 = Convert.ToInt32(temp[1]); ge3++; } if (ge3 == 91) { shi3++; ge3 = 65; } if (shi3 == 91) { bai3++; shi3 = 65; } char ge1 = Convert.ToChar(ge3); char shi1 = Convert.ToChar(shi3); char bai1 = Convert.ToChar(bai3); string code = "P" + bai1 + shi1 + ge1; txt.Writeconfig("B", "B", code, ".\\TestFile.ini"); code2 = code; Console.WriteLine("{0}", code2); } private static void qk1() { TXTcls txt = new TXTcls(); StringBuilder temp = new StringBuilder(); txt.ReadConfig("A", "A", "", temp, 255, ".\\TestFile.ini"); if (temp.Length != 0) { ge2 = Convert.ToInt32(temp[3]); shi2 = Convert.ToInt32(temp[2]); bai2 = Convert.ToInt32(temp[1]); ge2++; } if (ge2 == 91) { shi2++; ge2 = 65; } if (shi2 == 91) { bai2++; shi2 = 65; } char ge1 = Convert.ToChar(ge2); char shi1 = Convert.ToChar(shi2); char bai1 = Convert.ToChar(bai2); string code = "A" + bai1 + shi1 + ge1; txt.Writeconfig("A", "A", code, ".\\TestFile.ini"); code1 = code; Console.WriteLine("{0}", code1); } }}