开关是'；t识别超过1个字符

我一定很累，因为这应该很简单。我正试图找到从命令行传递到程序中的值。

这是代码：

private static bool ParseParms(IEnumerable<string> parms)
{
  try
  {
  foreach (var s in parms)
  {
    if (!s.Contains(":")) continue;
    var split = s.Split(Convert.ToChar(":"));
    if (split.Count() != 2) continue;
    Console.WriteLine("split[0]: " + split[0]);
    Console.WriteLine("split[1]: " + split[1]);
    switch (s[0].ToString())
    {
        // branch
      case "b":
        CustomerInfo.Branch = split[1];
        break;
        // account
      case "a":
        CustomerInfo.AccountNumber = split[1];
        break;
        //name
      case "n":
        CustomerInfo.Name = split[1];
        break;
        //street
      case "str":
        CustomerInfo.Street = split[1];
        break;
        // city
      case "c":
        CustomerInfo.City = split[1];
        break;
        // state
      case "st":
        CustomerInfo.State = split[1];
        break;
        // street
      case "z":
        CustomerInfo.Zip = split[1];
        break;
    }
  }
  Console.WriteLine("=======================");
  Console.WriteLine("name: " + CustomerInfo.Name);
  Console.WriteLine("br: " + CustomerInfo.Branch);
  Console.WriteLine("acctno: " + CustomerInfo.AccountNumber);
  Console.WriteLine("street: " + CustomerInfo.Street);
  Console.WriteLine("city: " + CustomerInfo.City);
  Console.WriteLine("state: " + CustomerInfo.State);
  Console.WriteLine("zip: " + CustomerInfo.Zip);
  Console.WriteLine("=======================");

  if(string.IsNullOrWhiteSpace(CustomerInfo.Branch) || string.IsNullOrWhiteSpace(CustomerInfo.AccountNumber))
  {
    return false;
  }
  return true;
  }
  catch (Exception ex)
  {
    Console.WriteLine("Error: " + ex.Message);
    return false;
  }
}

这就是我要传递的：

"b:01"a:012345"n:John Doe"str:123 Street"st:AL"c:Bessemer"z:35020"

是来自调试的控制台：

split[0]: b
split[1]: 01
split[0]: a
split[1]: 012345
split[0]: n
split[1]: John Doe
split[0]: str
split[1]: 123 Street
split[0]: st
split[1]: AL
split[0]: c
split[1]: Bessemer
split[0]: z
split[1]: 35020

这就是结果：

=======================
name: John Doe
br: 01
acctno: 012345
street: 
city: Bessemer
state: 
zip: 35020
=======================

正如你所看到的，街道和州都是空白的，我不明白为什么。。。

停下！