用常量字面值初始化ArrayList
下面的ArrayList可以直接初始化而不需要aFileExtstring数组吗？
private static string[] aFileExt = {"css", "gif", "htm", "html", "txt", "xml" }; private System.Collections.ArrayList alFileTypes = new System.Collections.ArrayList(aFileExt); 下面的行是目标，但我的.NET编译器不喜欢它：
private static System.Collections.ArrayList alFileTypes = new System.Collections.ArrayList({"css","gif","htm","html","txt","xml"});
我正在使用.NET Micro Framework，因此无法访问genericstypes。
C＃1或2：
private static ArrayList alFileTypes = new ArrayList(new string[] {"css","gif","htm","html","txt","xml"});
使用隐式types数组的C＃3：
private static ArrayList alFileTypes = new ArrayList(new[] {"css","gif","htm","html","txt","xml"});
使用集合初始值设定项的C＃3：
private static ArrayList alFileTypes = new ArrayList{"css","gif","htm","html","txt","xml"};
或者创build你自己的帮手方法：
public static ArrayList CreateList(params object[] items) { return new ArrayList(items); }
然后：
static ArrayList alFileTypes = CreateList("css","gif","htm","html","txt","xml");
任何你不使用generics集合的原因，顺便说一句？
如果您使用的是.NET 2.0或更高版本，那么应该使用通用的List<T>types（即使它是List<object> ，这会为您提供与ArrayList相同的function）。
如果您使用.NET 3.5或更高版本，则可以使用以下语法：
private static List<string> fileTypes = new List<string>() { "css","gif","htm","html","txt","xml" };
无论哪种方式，但是，如果你想坚持ArrayList ，你可以做：
private static System.Collections.ArrayList alFileTypes = new System.Collections.ArrayList(new object[] {"css","gif","htm","html","txt","xml"});
C＃3.0与通用List<T> ，而不是一个ArrayList ：
private static List<string> alFileTypes = new List<string> {"css","gif","htm","html","txt","xml"};
private static System.Collections.ArrayList alFileTypes = new System.Collections.ArrayList(new string [] {"css","gif","htm","html","txt","xml"});
尝试
private static System.Collections.ArrayList alFileTypes = new System.Collections.ArrayList(){"css","gif","htm","html","txt","xml"};
是的，只是改变
private static System.Collections.ArrayList alFileTypes = new System.Collections.ArrayList({"css","gif","htm","html","txt","xml"});
至
private static System.Collections.ArrayList alFileTypes = new System.Collections.ArrayList(new string[] {"css","gif","htm","html","txt","xml"});
