vb.net：webclient无法正常工作？

Question

Dim instance As WebClient
Dim address As String
Dim avoids as string

address = "http://www.ecosavetech.com/avoid.txt"

avoids = instance.DownloadString(address)

MsgBox(avoids)

msgbox没有显示任何内容。

请帮忙！我也没有收到任何错误

我正在使用Imports System.Net

Answer 1

你确定你没有收到任何错误？您的代码在未引用实例的变量上调用DownloadString方法。你可能也希望创建一个WebClient：

Dim instance As New WebClient()
Dim address As String
Dim avoids As Atring

address = "http://www.ecosavetech.com/avoid.txt"

avoids = instance.DownloadString(address)

MsgBox(avoids)

Answer 2

在您共享的代码中，您实际上并未创建WebClient。

Dim instance as WebClient = new WebClient()