C＃使用字典(C# using dictionaries)

 如果要求这种帮助是不好的，我很抱歉...但我不知道还有谁要问。 
 
 我有一个任务来读取两个文本文件，并找到第一个文件中10个最长的单词（以及它们重复的次数），它们不存在于第二个文件中。 
 
 我目前使用File.ReadAllLines读取两个文件，然后将它们拆分成数组，其中每个元素都是一个单词（删除标点符号）并删除空条目。 
 
 我不得不挑选符合要求的词的想法是：创建一个包含字符串Word和int Count的字典。 然后为第一个文件的长度重复一个循环....首先将该元素与整个字典进行比较 - 如果它找到匹配项，则将计数增加1.然后，如果它与任何字典元素都不匹配 - 比较给定元素与第二个文件中的每个元素通过另一个循环，如果它找到匹配的话 - 只要继续阅读第一个文件的下一个元素，如果它没有找到任何匹配项 - 将该单词添加到字典中，并设置数到1。 
 
 所以我的第一个问题是：这是否是最有效的方法？ （不要忘记我最近才开始学习c＃，并且不允许使用linq） 
 
 第二个问题：我如何使用字典，因为我发现的大部分结果都非常混乱，我们还没有在大学里见过他们。 
 
 我的代码到目前为止： 
 
    // Reading and making all the words lowercase for comparisons
    string punctuation = " ,.?!;:\"\r\n";
    string Read1 = File.ReadAllText("@\\..\\Book1.txt");
    Read1 = Read1.ToLower();
    string Read2 = File.ReadAllText("@\\..\\Book2.txt");
    Read2 = Read2.ToLower();

    //Working with the 1st file
    string[] FirstFileWords = Read1.Split(punctuation.ToCharArray());

    var temp1 = new List<string>();
    foreach (var word in FirstFileWords)
    {
        if (!string.IsNullOrEmpty(word))
            temp1.Add(word);
    }
    FirstFileWords = temp1.ToArray();

    Array.Sort(FirstFileWords, (x, y) => y.Length.CompareTo(x.Length));

    //Working with the 2nd file
    string[] SecondFileWords = Read2.Split(punctuation.ToCharArray());

    var temp2 = new List<string>();
    foreach (var word in SecondFileWords)
    {
        if (!string.IsNullOrEmpty(word))
            temp2.Add(word);
    }
    SecondFileWords = temp2.ToArray();

I'm sorry in advance if it's bad to ask for this sort of help... but I don't know who else to ask.
 
I have an assignment to read two text files, and find the 10 longest words in the first file (and the amount of times they're repeated) which dont exist in the second file.
 
I currently read both of the files with File.ReadAllLines then split them into arrays, where every element is a single word (punctuation marks removed as well) and removed empty entries.
 
The idea I had to pick out the words fitting the requirements was: to make a dictionary containing a string Word and an int Count. Then make a loop repeating for the first file's length.... firstly comparing the element with the entire dictionary - if it finds a match, increase the Count by 1. Then if it doesn't match with any of the dictionary elements - compare the given element with every element in the 2nd file through another loop, if it finds a match - just go on to the next element of the first file, if it doesn't find any matches - add the word to the dictionary, and set Count to 1.
 
So my first question is: Is this actually the most efficient way to do this? (Don't forget I've only recently started studying c# and am not allowed to use linq)
 
Second question: How do I work with the dictionary, because most of the results I could find were very confusing, and we have not yet met them at university.
 
My code so far:
 
    // Reading and making all the words lowercase for comparisons
    string punctuation = " ,.?!;:\"\r\n";
    string Read1 = File.ReadAllText("@\\..\\Book1.txt");
    Read1 = Read1.ToLower();
    string Read2 = File.ReadAllText("@\\..\\Book2.txt");
    Read2 = Read2.ToLower();

    //Working with the 1st file
    string[] FirstFileWords = Read1.Split(punctuation.ToCharArray());

    var temp1 = new List<string>();
    foreach (var word in FirstFileWords)
    {
        if (!string.IsNullOrEmpty(word))
            temp1.Add(word);
    }
    FirstFileWords = temp1.ToArray();

    Array.Sort(FirstFileWords, (x, y) => y.Length.CompareTo(x.Length));

    //Working with the 2nd file
    string[] SecondFileWords = Read2.Split(punctuation.ToCharArray());

    var temp2 = new List<string>();
    foreach (var word in SecondFileWords)
    {
        if (!string.IsNullOrEmpty(word))
            temp2.Add(word);
    }
    SecondFileWords = temp2.ToArray();

原文：https://stackoverflow.com/questions/40952555