2.编写一个程序，将句子拆分成单词数组，然后选择第一个字母为元音的单词. [英] 2. Write a program that Split the sentence into an array of words and select those whose first letter is a vowel.

问题描述

编写一个程序，将句子拆分成单词数组，然后选择第一个字母为元音的单词.

Write a program that Split the sentence into an array of words and select those whose first letter is a vowel.

推荐答案

public System.Collections.ArrayList getVowelWord(string sentence)
    {
        System.Collections.ArrayList arr = new System.Collections.ArrayList();
        string[] words = sentence.Split(' ');
        string[] vowels = new string[]{ "A", "E", "I", "O", "U" };
        foreach (string s in words)
        {
            foreach (string vowel in vowels)
            {
                if (s.ToUpper().IndexOf(vowel) == 0)
                {
                    arr.Add(s);
                    break;
                }
            }
        }
        return arr;
    }

using System;

class Program
{
    static void Main()
    {
        string s = "there is a cat";
        //
        // Split string on spaces.
        // ... This will separate all the words.
        //
        string[] words = s.Split(' ');
        foreach (string word in words)
        {
            Console.WriteLine(word);
        }
    }
}

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