VB.NET 美化HTML代码

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim web As New Net.WebClient
Dim content As String
web.Headers("Content-Type") = "application/x-www-form-urlencoded"
web.Headers("Referer") = "http://tool.lu/html/"
content = web.UploadString("http://tool.lu/html/ajax.html", "operate=beauty&code=" & Uri.EscapeDataString(RichTextBox1.Text))
content = Replace(content, "{""status"":true,""message"":"""",""text"":""", "")
content = Replace(content, """}", "")
content = System.Text.RegularExpressions.Regex.Unescape(content)
RichTextBox1.Text = content
End Sub