//容易，用String類的Contains方法就可以判斷，具體看例子。

using System;

public class Test

{

public static void Main(string[] args)

{

string line="aaa 你好 哈哈哈 對了 good bye just so so so easy!";

string[] strs={"aaa","sos","哈哈哈","對了嗎","so easy"};

foreach(string s in strs)

{

if(line.Contains(s))

{

Console.WriteLine("字串\""+line+"\"包含字串\""+s+"\"");

}

else

{

Console.WriteLine("字串\""+line+"\"不包含字串\""+s+"\"");

}

}

Console.Write("Press any key to continue . . . ");

Console.ReadLine();

}

}