Question

当前代码正在编译O.K，如果找到重复，则会自动删除。无论如何，用户可以选择是否要在删除之前保留副本。或者是否有另一种我认为合适的方法。

 static void Main(string[] args)
    {
        List<string> dictionaryList = new List<string>();
        string input;

        Console.Write("Please enter a string or END to finish: ");
        input = Console.ReadLine();
        while (input.ToUpper() != "END")
        {
            if (!dictionaryList.Contains(input)) // This is where i am looking of a user response of y/n too add duplicate string

            dictionaryList.Add(input);

            Console.Write("Please enter a string or END to finish: ");
            input = Console.ReadLine();

        }

        dictionaryList.Sort();
        Console.WriteLine("Dictionary Contents:");
        foreach (string wordList in dictionaryList)
            Console.WriteLine("\t" + wordList);
    }
}
}

Answer 1

这应该可以解决问题：

while (input.ToUpper() != "END")
{
    bool blnAdd = true;
    if (dictionaryList.Contains(input))
    {
        Console.Write("Already exists, keep the duplicate? (Y/N)");
        blnAdd = Console.ReadLine().Equals("Y");
    }

    if (blnAdd)
        dictionaryList.Add(input);

    Console.Write("Please enter a string or END to finish: ");
    input = Console.ReadLine();
}

代码背后的逻辑：如果输入已存在于列表中，则仅在Y添加项目时提醒用户并阅读其答案。

Answer 2

尝试使用以下代码：

            List<string> dictionaryList = new List<string>();

            string input;

            Console.Write("Please enter a string or END to finish: ");
            input = Console.ReadLine();
            while (input.ToUpper() != "END")
            {
                if (dictionaryList.Contains(input))
                {
                    Console.Write("Do you want to have dup string(Y/N):");
                    string response = string.Empty;
                    response = Console.ReadLine();
                    if (response.ToUpper().Equals("Y"))
                        dictionaryList.Add(input);    
                }
                else
                {
                    dictionaryList.Add(input);
                }
                Console.Write("Please enter a string or END to finish: ");
                input = Console.ReadLine();

            }

            dictionaryList.Sort();
            Console.WriteLine("Dictionary Contents:");
            foreach (string wordList in dictionaryList)
                Console.WriteLine("\t" + wordList);

info re：在stringLists中添加/删除方法

2 个答案: