將html下載爲字符串

Question

我試圖以網頁形式下載字符串。有人可以解釋爲什麼下面的代碼不起作用嗎？

Dim URL As String = "http://stackoverflow.com/" 
    Dim client As WebClient = New WebClient() 
    Dim data As Stream = client.OpenRead(URL) 
    Dim reader As StreamReader = New StreamReader(data) 
    Dim str As String = "" 
    str = reader.ReadLine() 
    Do While str.Length > 0 
     Console.WriteLine(str) 
     str = reader.ReadLine() 
    Loop 

當我運行它時，它永遠不會進入循環。

Answer 1

給這個一杆...

Dim URL As String = "http://stackoverflow.com/" 
    Dim html As String = New WebClient().DownloadString(URL) 

更好的解決方案（發行版中的網絡堆棧正在使用的資源。此外，還要確保的（希望）需要時CLR清除這些了。）

Using client As New WebClient() 
    html = client.DownloadString(URL) 
End Using