更改给定文本框中的句子顺序

Question

我虽然关于解决方案，但我不知道怎么做。

例如，我在文本框中的每一行都有一些句子。

Sentence 1
Sentence 2
Sentence 3

我想要输出＆＃34;混合/ randomed＆＃34;类似的东西：

Sentence 3
Sentence 1
Sentence 2

有什么想法吗？我编程不好。

Answer 1

你可以使用Linq的OrderBy扩展方法来实现这一目的。

    'Setup
    Dim txtYourTextBox As New TextBox
    txtYourTextBox.Text = "Sentence 1" & ControlChars.NewLine & "Sentence 2" & ControlChars.NewLine & "Sentence 3"

    'Creates random numbers.
    Dim rnd As New System.Random()

    'Get the list of sentences randomized.
    Dim lstRandomizedSentences As List(Of String) = txtYourTextBox.Text.Split(ControlChars.NewLine).OrderBy(Function() rnd.Next).ToList()

    'Clear the textbox before repopulating with randomized sentences.
    txtYourTextBox.Text = String.Empty

    'Loop through all of your randomized sentences to populate the textbox.
    For Each strSentence In lstRandomizedSentences

        '.Trim() so extra line breaks aren't added.
        txtYourTextBox.Text += strSentence.Trim() & ControlChars.NewLine

    Next