如何在C＃中将空分配给字符串数组

Question

How can I assign empty to string array in c#?

string [] stack; //string array

how to assign

stack = ""; //this statement gives error cannot implicitly convert to type string to string []

Answer 1

You cannot use:

string[] stack = "";

Since stack in here is an array of string. If you want to initialize empty string for each elements in array, you can use LINQ with Enumerable.Range to get the result, assume there are 10 items in here:

 string[] stack = Enumerable.Range(0, 10)
                            .Select(i => string.Empty)
                            .ToArray();

Answer 2

This will create an array with three empty strings.

string[] arr1 = new string[] { "", "", "" };

or if you only need one:

string[] arr1 = new string[] { "" };

or another example (with 3 strings):

string[] arr1 = new string[3];
arr1[0] = "";
arr1[1] = "";
arr1[2] = "";

Answer 3

Just iterate over the array like this:

int length = stack.Length;
for(int i = 0; i < length; i++)
{
    stack[i] = string.Empty;
}

Answer 4

如果您只想创建string []对象的空数组。

string [] stack = new string[]{};