static void Main(string[] args) { // HttpUtil.SetProxy("127.0.0.1", 8888); var file = new HttpFile(); var progressText = new[] { ". ", ".. ", "... ", ".... ", "..... ", "...... ", "....... ", "........", }; const string url = "http://www.meituan.com/api/v2/rushan/deals"; const string filePath = "E:\\Test\\DownloadTest\\Test.txt"; int index = 0; bool result = file.GetFileWithProgress(url, filePath, (readSize, totalSize) => { // print progress Console.Write("\r" + readSize + " / " + totalSize + ", " + (readSize*100/totalSize) + " % " + progressText[index]); ++index; if(index >=progressText.Length) index = 0; return true; }); Console.WriteLine("\r\nDownload " + (result ? "Ok" : "Failed")); }