C# Delete the nth item from a string

Question

How would i go about deleting (not just replacing with a ' ' ) The nth char of a string. Say i want to have Hello World output Hllo World any thing that could do this?

Answer 1

With .Remove

var removed = s.Remove(1, 1);

note, you can't change a string, you can only create a new string with the character removed.

Answer 2

字符串类具有remove方法

var s = "abc".Remove(1,1); //will return ac 

Answer 3

StringBuilder a = new StringBuilder("Hello World");
a.remove(1, 1);

Answer 4

string stringFlag = "ImAFlag";

var charList = stringFlag .Select(c => c.ToString()).ToArray();

charList.RemoveAt(0);

string newString = null;
foreach(var item in charList)
{
    newString += item.ToString();
}

now the stringFlag is

"mAFlag"