C#string与char互转

C#string与char互转
https://www.cnblogs.com/zywf/p/4501861.html

    string s = "asdf";
        //字符转char
    char[] c = s.ToCharArray();

    Console.WriteLine(s[0]);
        //char转string
    string s1 = c.ToString();
    Console.WriteLine(s);
    Console.ReadKey();