Question

我有像

这样的大字符串列表

实际上我正在使用二进制Writer

            case btn_click:
                BinaryWriter bw = new BinaryWriter(File.OpenWrite(theFiles));

                for (int i = 0x000004; i <= 0x000005; i++)
                {
                    bw.BaseStream.Position = 0x000004;
                    string cmp = spn1.SelectedItem.ToString();
                    if (cmp == "A") bw.Write(0x0123);
                    if (cmp == "B") bw.Write(0x0456);
                    if (cmp == "C") bw.Write(0x0789);
                }

                for (int i = 0x000008; i <= 0x000009; i++)
                {
                    bw.BaseStream.Position = 0x000008;
                    string cmp = spn2.SelectedItem.ToString();
                    if (cmp == "A") bw.Write(0x0123);
                    if (cmp == "B") bw.Write(0x0456);
                    if (cmp == "C") bw.Write(0x0789);
                }
                for (int i ...
                {
                    ...
                }
...

如何避免重写字符串a，b，c？

所以@Olexiy Dymashok的回答我可以解决问题^^ 我把字符串cmp放在公共场所

public string cmp { get; private set; }

     for (int i = 0x000004; i <= 0x000005; i++)
                {
                    bw.BaseStream.Position = 0x000004;
                    cmp = spn1.SelectedItem.ToString();
                    bw.Write(SelectDataForBinaryWriter("ListData"));
                }

     for (int i = 0x000004; i <= 0x000005; i++)
                {
                    bw.BaseStream.Position = 0x000004;
                    cmp = spn2.SelectedItem.ToString();
                    bw.Write(SelectDataForBinaryWriter("ListData"));
                }

    private int SelectDataForBinaryWriter(string input)
    {
        int output = 0;
        if (cmp == "A") output = 0x0000;
        if (cmp == "B") output = 0x0123;
        if (cmp == "C") output = 0x0456;
        return output;
    }

谢谢你

Answer 1

您可以创建一个包含a，b和c作为常量字段的静态类。

public static class Arbitrary
{
    public const string A = "test";
    ...
}

Answer 2

如果这些字符串对于所有情况都相同 - 将它们设为全局：

string a = "test";
string b = "try";
string c = "compare";
//case 1
for (int i = 1; i <= 2; i++)
{
     if (a == b) { do something };
     if (a == c) { do something};
 }
 //case 2
 for (int i = 3; i <= 4; i++)
{
     if (a == b) { do something };
     if (a == c) { do something};
}

这样做可以避免在每种情况下重复初始化此字符串

修改1

您可以创建选择值的功能：

for (int i = 1; i <= 2; i++)
{
     bw.Write(SelectDataForBinaryWriter("A"));
}
...
private int SelectDataForBinaryWriter(string input)
{
    int output = 0;
    switch (input) // edit your own cases here
    {
        case "A":
            output = 0x123;
            break;
        case "B":
            output = 0x456;
            break;
        case "C":
            output = 0x789;
            break;
        default:
            output = some_default_value_here;
            break;
    }

    return output;
}

正如我所看到的，您正在编写十六进制值，因此您也可以考虑返回已经解析的值 - C# convert integer to hex and back again

C＃多字符串比较

2 个答案: