如何在Microsoft Visual Basic 2008速成版中创建元音计数应用程序？ [英] How do you create a Vowel Count application in Microsoft Visual Basic 2008 Express Edition?

问题描述

我需要创建一个应用程序来计算一个文本框中有多少个元音，然后在一个标签中显示它们的数量，这些标签与短语" 元音的数量"连接在一起*输入的单词  ;或短语* 是：
"我按下按钮后。它需要计算所有元音（包括字母"y"），无论它们是大写还是小写，它必须使用循环函数，显然因为它必须计算并显示I
之后的元音数量按一个按钮就必须在一个私人子中完成。

Hi, I need to create an application that counts how many vowels there are in a text box and then displays the amount of them in a label concatenated with the phrase "The number of vowels in *Entered word or phrase* is: " after I push a button. It needs to count all vowels (including the letter "y") regardless of whether they are uppercase or lowercase, it must use a loop function, and obviously since it has to count and display the number of vowels after I press a button it all has to be done in one private sub.

推荐答案

如果这是作业，你只需要一个循环。

You only need a loop if this is homework.

Dim Input As String = "How can I count vowels in string by using loop and if,, I wrote this code which is not working don't know where I went wrong? I don't want to use array either"
Console.WriteLine(New Regex("(?i)[aeiou]").Matches(Input).Count)

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