C# 网页登录

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//登录http://218.196.244.90:8080/dz1.php

winform界面一个button，一个textbox,一个webBrowser1.

 private void button1_Click(object sender, EventArgs e)
        {
            string sUrl = textBox1.Text.Trim();
            if (sUrl.Length > 0)
            {
                webBrowser1.Navigate(sUrl);
            }
        }

        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            HtmlElement ClickBtn = null;
            if (e.Url.ToString().ToLower().IndexOf("php") > 0)
            {
                HtmlDocument doc = webBrowser1.Document;
                for (int i = 0; i < doc.All.Count; i++)
                {
                    if (doc.All[i].TagName.ToUpper().Equals("INPUT"))
                    {
                        switch (doc.All[i].Name)
                        {
                            case "T1":
                                doc.All[i].InnerText = "311209";
                                break;
                            case "T3":
                                doc.All[i].InnerText = "2***";　
                                break;
                            case "xm":
                                doc.All[i].InnerText = "**";　　
                                break;
                            case "B1":
                                ClickBtn = doc.All[i];
                                break;
                        }
                    }
                }
                ClickBtn.InvokeMember("Click");　　
            }
        }

C# 网页登录

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原文地址：http://blog.csdn.net/ilipan/article/details/45798469