如何将用户输入的字符串存储在数组中以在 C# 中对其执行搜索操作？

Question

 public class CellPhoneMessagingController : ApiController
    {
        [HttpGet]
        [Route("api/CellPhoneMessaging/{code}")]
        public string burgers(string code)
        {

          string userCode = code;
            char[] ch = new char[userCode.Length];
            for (int i = 0; i < ch.Length; i++) { 
                    ch[i] = userCode[i];
            }

            return ch;

           
        }
    }

I tried this but it is not returning the ch. Note: I am new in programming.

Answer 1

If you want it to return the characters of the string as an array, then use String.ToCharArray() :

public char[] burgers(string code)
{
    return code.ToCharArray();
}

Seems kinda pointless now to put that into a function, though...

Answer 2

The return type has a problem. Your function should have a return type of string[].

 public class CellPhoneMessagingController : ApiController
    {
        [HttpGet]
        [Route("api/CellPhoneMessaging/{code}")]
        public string[] burgers(string code)
        {

          string userCode = code;
            char[] ch = new char[userCode.Length];
            for (int i = 0; i < ch.Length; i++) { 
                    ch[i] = userCode[i];
            }

            return ch;

           
        }