using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Diagnostics; using System.Net; using System.IO; using System.Windows.Forms; namespace ConsoleApp392 { class Program { static void Main(string[] args) { WebClientDownloadDemo(); } static void WebClientDownloadDemo() { string url = "https://go.microsoft.com/fwlink/?linkid=866662"; WebClient webClient = new WebClient(); webClient.DownloadProgressChanged += WebClient_DownloadProgressChanged; webClient.DownloadFileCompleted += WebClient_DownloadFileCompleted; Console.WriteLine($"Started at {DateTime.Now.ToString("yyyyMMddHHmmssffff")}"); webClient.DownloadFileAsync(new Uri(url), "SSMS2019.exe"); } private static void WebClient_DownloadFileCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e) { MessageBox.Show("Download Completed!"); } private static void WebClient_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e) { Debug.WriteLine($"{e.UserState?.ToString()} downloaded {e.BytesReceived} of {e.TotalBytesToReceive} bytes. {e.ProgressPercentage} % complete..."); Console.WriteLine($"{e.UserState?.ToString()} downloaded {e.BytesReceived} of {e.TotalBytesToReceive} bytes. {e.ProgressPercentage} % complete..."); } } }
原文链接: https://www.cnblogs.com/Fred1987/p/11919774.html
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