在richtextbox中查找符号并在side bracks中读取值 [英] find symbol in richtextbox and read value in side bracks

问题描述

我想找一个符号（@）然后找到开始卷曲的括号，直到结束culry brack并读取值insid bracks ..

i want find a symbol (@) then find Start curly brack till end culry brack and read the value insid bracks..

@{
    var="ak";
}

i尝试了但没有得到确切的结果...





请帮助thankyou ...

i tried it but not getting exact result...


pls help thankyou...

推荐答案

你好，



你在子串函数的长度参数中有一个错误。

这段代码（在VB.NET中）工作正常：

Hello,

You have an error in the length parameter of the Substring function.
This code (in VB.NET) works fine :

RichTextBox1.Text = "test@{test.fr}"
Dim i As Integer = RichTextBox1.Text.LastIndexOf("@{")
Dim s As String = RichTextBox1.Text.Substring(i, RichTextBox1.Text.LastIndexOf("}") - i + 1)
MessageBox.Show(s)

我稍微修改一下这个函数（子串调用的索引）

I modify the function a little (the indexes for Substring call)

Public Class Form1

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        RichTextBox1.Text = "test@{test.fr}"
        Dim i As Integer = RichTextBox1.Text.LastIndexOf("@{")
        Dim s As String = RichTextBox1.Text.Substring(i+2, RichTextBox1.Text.LastIndexOf("}") - (i+2))
        MessageBox.Show(s)

    End Sub

End Class

此代码在MessageBox中返回test.fr。所以，@ {和}之间的值。

This code returns "test.fr" in the MessageBox. So, the value between "@{" and "}".

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