C#字符串数组常量？解决办法

C#字符串数组常量？
C#中能否定义字符串数组常量，该怎么定义？
eg:

C# code

public const str[]=new string[3]{"ab","bc","cd"};

C# code

public static readonly string[] str = new string[3] { "ab", "bc", "cd" };
[解决办法]
探讨

C# code
public static readonly string[] str = new string[3] { "ab", "bc", "cd" };

[解决办法]
觉得不方便你就用List<string>算了，功能比定义string[] 数组强