如何在 C# 中初始化一个空数组?
问题描述：
是否可以不指定大小就创建一个空数组?
Is it possible to create an empty array without specifying the size?
例如，我创建:
String[] a = new String[5];
我们可以创建没有大小的上述字符串数组吗?
Can we create the above string array without the size?
答
如果您要使用事先不知道大小的集合，那么有比数组更好的选择.
If you are going to use a collection that you don't know the size of in advance, there are better options than arrays.
改用 List - 它将允许您根据需要添加任意数量的项目，如果您需要返回数组，请调用 ToArray()在变量上.
Use a List<string> instead - it will allow you to add as many items as you need and if you need to return an array, call ToArray() on the variable.
var listOfStrings = new List<string>();
// do stuff...
string[] arrayOfStrings = listOfStrings.ToArray();
如果你必须创建一个空数组，你可以这样做:
If you must create an empty array you can do this:
string[] emptyStringArray = new string[0];