C#程序开发范例宝典光盘内容（第12-18章）

http://192.168.1.98/Forever() 13:59:30 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Net; using System.IO; namespace _6_01 { public partial class FrmwebRequest : Form { public FrmwebRequest() { InitializeComponent(); } public void TryRequset(string StrUrl) { HttpWebResponse response; WebRequest request; try { request = WebRequest.Create(StrUrl); request.Credentials = CredentialCache.DefaultCredentials; response = (HttpWebResponse)request.GetResponse(); Stream dataStream = response.GetResponseStream(); StreamReader reader = new StreamReader(dataStream); string responseFromServer = reader.ReadToEnd(); this.richTextBox1.Text = responseFromServer.ToString(); reader.Close(); dataStream.Close(); response.Close(); } catch { MessageBox.Show("URLʽȷӲinternet"); return; } } private void saveInfo(string strPath, string strDown) { WebClient wC = new WebClient(); wC.DownloadFile(strDown, strPath); } private void button1_Click(object sender, EventArgs e) { if (this.textBox1.Text.Trim().ToString() != "") { this.TryRequset(this.textBox1.Text.Trim().ToString()); } else { MessageBox.Show("дȷURL"); } } private void button2_Click(object sender, EventArgs e) { saveFileDialog1.Filter = "ıļ|*.txt"; if (this.saveFileDialog1.ShowDialog() == DialogResult.OK) { this.textBox2.Text = this.saveFileDialog1.FileName; if (this.textBox1.Text.Trim().ToString() != "") { saveInfo(this.textBox2.Text.Trim().ToString(), this.textBox1.Text.Trim().ToString()); MessageBox.Show("ɹ"); } else { MessageBox.Show("дĿҳURL"); this.textBox2.Text = string.Empty; } } } } }