VB.NET如何在WebClient()请求中插入数据

Imports System.Net

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim url As String = "http://example.com/api/insert"
        Dim data As String = "name=John&age=25"

        Dim client As New WebClient()
        Dim response As String = ""

        Try
            client.Headers.Add("Content-Type", "application/x-www-form-urlencoded")
            response = client.UploadString(url, "POST", data)
        Catch ex As Exception
            ' 处理异常
        End Try

        ' 处理响应数据
        MessageBox.Show(response)
    End Sub
End Class