求判断重复算法!!!

Question

用户每次随意输入100以内的7个数字.
要求输入不能重复.
怎样判断?

Answer 1

开一个范围为100的bool数组吧 然后读入一个数据后 就标记一下 

Answer 2

        
        bool CheckRepeat(IEnumerable<int> inputs)
        {
            foreach (var item in inputs)
            {
                int cnt = 0;
                foreach (var item1 in inputs)
                {
                    if (item == item1)
                    {
                        if (++cnt > 1)
                            return false;
                    }
                }
            }
            return true;
        }

Answer 3

IEnumerable<int> inputs
这个变量怎么传入呀?
用户输入的是在textbox输入

Answer 4

class FangFa
    {
        public static bool Check(string str)
        {
            bool flag=true;
            string[] Ch=new string[7];
            Ch=str.Split(',');
            for (int i = 0; i < str.Length; i++)
            {
                for (int j = i + 1; j < 6; j++)
                {
                    if (Ch[i] == Ch[j])
                    {
                        flag = false;
                        break;
                    }
                    
                }
            }
            if(flag==false)
            {
                Console.WriteLine("有重复数字请重新输入：");
                str = Console.ReadLine();
                Check(str);  
            }
                     
           return flag=true;
           } 
    }
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("输入七个不同的数以‘，’隔开：");    
            string shuzi = Console.ReadLine();
            FangFa.Check(shuzi);
            Console.Read();
        }
    }
如果是窗体把Ch变为textbox.text即可