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Question

给你的程序定义了一个包含 10 个单词的数组，并以一个字母作为输入。 编写一个程序来遍历数组和包含所取字母的 output 单词。 如果没有这个词，程序应该 output “不匹配”。

样本输入u

样品 Output fun

/////////////////////////////////////////The Code I did comes after this//////////////////
using System;
using System.Collections.Generic;

namespace Code_Coach_Challenge
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] words = {
                "home",
                "programming",
                "victory",
                "C#",
                "football",
                "sport",
                "book",
                "learn",
                "dream",
                "fun"
            };
            string letter = Console.ReadLine();
            for (int count = 0; count < 10; count++)
            {
                if (words.Contains(letter)) { Console.WriteLine(words[count]); }
                else
                {
                    Console.WriteLine("No match");
                }
            }
        }
    }
}

Answer 1

既然你用

  if (words.Contains(letter))

应用程序逐项检查整个数组，并将每个完整的单词与字母进行比较。 如果字母是整个世界，并且它在数组单元格之一中找到这个世界，则返回 true 和单词 words[count]。 但是 words[count] 可能是任何单词，而不仅仅是包含正确字母的单词。 要返回正确的单词，您应该使用

 if ( words[count].Contains(letter))

在这种情况下，应用程序只查找每个单词中的子字符串，而不是整个单词等于一个字母。

因此，要在数组中找到正确的单词，您需要使用数组索引。 尝试这个

using System;
using System.Collections.Generic;

namespace Code_Coach_Challenge
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] words = { "home", "programming", "victory", "C#", "football", "sport", "book", "learn", "dream", "fun" };

            string letter = Console.ReadLine();
            var found = false;
            var i = 0;
            var list = new List<string>();
            for ( i = 0; i < words.Length; i++)
            {

                if (words[i].Contains(letter))
                {
                    found=true;
                    list.Add(words[i]);
                
                }
    
            }   
             if (found)  Console.WriteLine("Found word(s): "+ string.Join(",", list));
             else Console.WriteLine("No match");
        }
    }
}

输入“o”的输出

Found word(s):home,programming,victory,football,sport,book

更新

更简单的学生变体

 string[] words = { "home", "programming", "victory", "C#", "football", "sport", "book", "learn", "dream", "fun" };

            string letter = Console.ReadLine();
            var found = false;

            for ( var i = 0; i < words.Length; i++)
            {
                if (words[i].Contains(letter))
                {
                    found=true;
                    Console.WriteLine(words[i]);
                 }
              }   
             if (!found) Console.WriteLine("No match");

Answer 2

尝试这个

using System;
using System.Collections.Generic;

namespace Code_Coach_Challenge
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] words = {
                "home",
                "programming",
                "victory",
                "C#",
                "football",
                "sport",
                "book",
                "learn",
                "dream",
                "fun"
            };

            string letter = Console.ReadLine();
            bool found = false;
            
            
            for (int count = 0; count < words.Length ; count ++ )
            {
                if (words[count].Contains(letter))

                {
                    found = true;
                    Console.Write(words[count]);
                }
 
            }

            if (!found)
            {
              {Console.Write("No match");}
            }
            
        }
    }
}

Answer 3

使用系统；

命名空间 TestConsoleApp { 内部 class 程序 { 私有 static void Main(string[] args) { string[] words = { “home”, “programming”, “victory”, “C#”, “football”, “sport”, “book ", "学习", "梦想", "乐趣" };

        string letter = Console.ReadLine();

        int count = 0;
        // Use the for loop below

        for (int a = 0; a < words.Length; a++)
        {
            if (words[a].Contains(letter))
            {
                Console.WriteLine(words[a]);
                count++;
            }
        }

        if (count == 0)
        {
            Console.WriteLine("No match");
        }
    }
}

}