How can I get a character in a string by index?

I know 开发者_JAVA技巧that I can return the index of a particular character of a string with the indexof() function, but how can I return the character at a particular index?

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

See also Substring, to return more than one character.

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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);