如何使用子字符串 C# 控制台从“12345-678”中获取前两位数字

Question

我正在创建一个 C# 控制台应用程序，该应用程序将连字符替换为零，以完成身份证“123456-72”中我的字符串的最大长度，我在必须对数组进行排序时面临困难.

我想从这个“123456-72”中排序第一个数字或字符，在某些情况下我需要从前两位数字“[=19”排序=]391234-56".

此示例运行良好，但仅适用于第一个字符。我需要示例：

class IdentificationNumber {

    private string IDNumber;
    private int Customertype;
    private string check;
    private string pad;
    private string longFormat;

    SortedList GroupID = new SortedList();

    public IdentificationNumber(string IDNumber) {
        this.IDNumber= IDNumber;
    }

    public string getLongFormat() {
        var ReplaceHyp = IDNumber.Replace("-", "");
        int Customertype= Int32.Parse(IDNumber.Substring(0,2));

        //Array 
        //GroupID .Add(1,"Blue");
        //GroupID .Add(2,"Blue");
        GroupID .Add(38,"White");
        GroupID .Add(39,"Blue");

        pad=""; 
        check = GroupID.GetByIndex(GroupID.IndexOfKey(Customertype)).ToString();
        Console.WriteLine(Customertype);
        Console.WriteLine(check);

        switch (check) { 
            case("White"):
                longFormat= ReplaceHyp.Substring(0,6)+pad.PadLeft((14 -ReplaceHyp.Length),'0')+ReplaceHyp.Substring(6,(ReplaceHyp.Length-6));
                break;

            case("Blue"):
                longFormat= ReplaceHyp.Substring(0,7)+pad.PadLeft((14 -ReplaceHyp.Length),'0')+ReplaceHyp.Substring(7,(ReplaceHyp.Length-7));
                break;
        }

        return longFormat;
    }
}

有什么解决办法或建议吗？

Answer 1

这是您可能需要的比较器方法的框架：

public static int CompareStrings(string s1, string s2)
{
    int Customertype1 = Int32.Parse(s1.Substring(0,2));
    int Customertype2 = Int32.Parse(s2.Substring(0,2));

    string check1 = GroupID.GetByIndex(GroupID.IndexOfKey(Customertype1)).ToString();
    string check2 = GroupID.GetByIndex(GroupID.IndexOfKey(Customertype2)).ToString();

    if (Customertype1 > Customertype2)
        return 1;
    if (Customertype1 < Customertype2)
        return -1;
    else
    {
        var ReplaceHyp1 = s1.Replace("-", "");
        switch (check1) { 
            case("White"):
                longFormat1 = ReplaceHyp1.Substring(0,6)+pad.PadLeft((14 -ReplaceHyp1.Length),'0')+ReplaceHyp1.Substring(6,(ReplaceHyp1.Length-6));
                break;

            case("Blue"):
                longFormat1 = ReplaceHyp1.Substring(0,7)+pad.PadLeft((14 -ReplaceHyp1.Length),'0')+ReplaceHyp1.Substring(7,(ReplaceHyp1.Length-7));
                break;
        }
        var ReplaceHyp2 = s2.Replace("-", "");
        switch (check2) { 
            case("White"):
                longFormat2 = ReplaceHyp2.Substring(0,6)+pad.PadLeft((14 -ReplaceHyp2.Length),'0')+ReplaceHyp2.Substring(6,(ReplaceHyp2.Length-6));
                break;

            case("Blue"):
                longFormat2 = ReplaceHyp2.Substring(0,7)+pad.PadLeft((14 -ReplaceHyp2.Length),'0')+ReplaceHyp2.Substring(7,(ReplaceHyp2.Length-7));
                break;
        }
        return stringCompare(longFormat1, longFormat2);
    }
}

这段代码急需重构！根据您的具体需要，我认为可以删除 Customertype1/2 的检查。

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