how to return the character which is at the index?

问题

I know that i could return the index of a particular character of a string with indexof() function. But how i could return the character with the particular index?

回答1:

string s = "hello";
char c = s[1];
// now c == 'e'

See also Substring, to return more than one character.

回答2:

Do you mean like this

int index = 2;
string s = "hello";
Console.WriteLine(s[index]);

string also implements IEnumberable<char> so you can also enumerate it like this

foreach (char c in s)
    Console.WriteLine(c);

来源：https://stackoverflow.com/questions/2416894/how-to-return-the-character-which-is-at-the-index