判断两个数组是否相同怎么做？

Question

比如我有一个是多选题的答案，答案是a,b,c现在用户通过winfrom选择答案，
我怎么判断用户的选择与正确答案是相同的？

Answer 1

两者相 与 结果为 true  则相同

Answer 2

public void Test()
{
    Choice[] answer01_1 = new Choice[] { Choice.A, Choice.B, Choice.C };
    Choice[] answer01_2 = new Choice[] { Choice.A, Choice.B, Choice.C, Choice.D };
    Choice[] true_answer01 = new Choice[] { Choice.A, Choice.B, Choice.C };
    Console.WriteLine(true_answer01.Intersect(answer01_1).Count() == answer01_1.Length);
    Console.WriteLine(true_answer01.Intersect(answer01_2).Count() == answer01_2.Length);    //如果你用位操作，就更简单了。
    Choice answer1_1 = Choice.A | Choice.B | Choice.C;
    Choice answer1_2 = Choice.A | Choice.B | Choice.C| Choice.D;
    Choice answer1_3 = Choice.A | Choice.C ;
    Choice true_answer1 = Choice.A | Choice.B | Choice.C;
    Console.WriteLine(answer1_1 == true_answer1);
    Console.WriteLine(answer1_2 == true_answer1);
    Console.WriteLine(answer1_3 == true_answer1);
}public enum Choice { A = 1, B = 2, C = 4, D = 8 }

Answer 3

稍微修改一下public void Test()
{
    Choice[] answer01_1 = new Choice[] { Choice.A, Choice.B, Choice.C };
    Choice[] answer01_2 = new Choice[] { Choice.A, Choice.B, Choice.C, Choice.D };
    Choice[] answer01_3 = new Choice[] { Choice.A, Choice.B };
    Choice[] true_answer01 = new Choice[] { Choice.A, Choice.B, Choice.C };
    //以下修改
    Console.WriteLine(true_answer01.Intersect(answer01_1).Count() == answer01_1.Length && answer01_1.Length== true_answer01.Length);
    Console.WriteLine(true_answer01.Intersect(answer01_2).Count() == answer01_2.Length && answer01_2.Length == true_answer01.Length);
    Console.WriteLine(true_answer01.Intersect(answer01_3).Count() == answer01_3.Length && answer01_3.Length == true_answer01.Length);    //如果你用位操作，就更简单了。
    Choice answer1_1 = Choice.A | Choice.B | Choice.C;
    Choice answer1_2 = Choice.A | Choice.B | Choice.C | Choice.D;
    Choice answer1_3 = Choice.A | Choice.C;
    Choice true_answer1 = Choice.A | Choice.B | Choice.C;
    Console.WriteLine(answer1_1 == true_answer1);
    Console.WriteLine(answer1_2 == true_answer1);
    Console.WriteLine(answer1_3 == true_answer1);
}

Answer 4

数组相同值
List<string> lst1 = new List<string>(){"A"};
List<string> lst2= new List<string>() { "B"}
lstNew = lst1.Intersect(lst2, StringComparer.OrdinalIgnoreCase);
  

Answer 5

把答案写成字符串来判断
//判读多选题答案正确性 answer：用户答案  correct正确答案
        public static bool bolAnswer(string answer, string correct)
        {
//把字符串转换成数组
            char[] chrAnswer = answer.ToCharArray();
            char[] chrCorrect = correct.ToCharArray();
//判断用户数据是否为空
            if(answer.Length<1)
            {
                return false;
            }
//判读用户答案长度是否与正确答案长度一致
            else if (!answer.Length.Equals(correct.Length))
            {
                return false;
            }
            else
            {
                for (int i = 0; i < answer.Length; i++)
                {
                    for (int j = 0; j < correct.Length; j++)
                    {
                        int n = 1;
                        if (chrAnswer[i] == chrCorrect[j])
                        {
                            break;
                        }
                        else
                        {
                            n++;
                        }
                        if (n > correct.Length)
                        {
                            return false;
                        }
                    }
                }
                return true;
            }
        }