判断一个数组中是否包含某个字符串

1.public bool isExist(string[] ss, string str)
        {
            List<string> ls = new List<string>(ss);
            foreach (string s in ls)
            {
                if (ls.Contains(str))
                    return true;
            }
            return false;
        }

 

2.

private bool CheckZ(string str,string[] ss)
  {
     string[] t = ss;
   for (int i = 0; i < t.Length; i++)
   {
    if (str.Equals(t[i].ToString()))
    { return false; }
                
   }
   return true;
  }

3.

Array.IndexOf(string[],str)

4.

string [] str;

str[0].Contains("ss");

5. IndexOf

 

6.

str="sdf,gfd,gyh";

string s = "gfd";

int i = 0;

string [3] str1 = str.split(",");

foreach(DataRow dr in str1)

{

    if(dr[0] == s)

        RETURN TRUE;

    else return false;

   i ++;

}