用c#从链接下载一个pdf

using System;
using System.Net;

class Program
{
    static void Main(string[] args)
    {
        string url = "https://example.com/example.pdf"; // 替换为实际的PDF链接

        using (WebClient client = new WebClient())
        {
            try
            {
                client.DownloadFile(url, "example.pdf"); // 下载并保存为"example.pdf"文件
                Console.WriteLine("PDF文件下载成功！");
            }
            catch (Exception ex)
            {
                Console.WriteLine("PDF文件下载失败：" + ex.Message);
            }
        }
    }
}