C#网页填表

//截取于写的邮箱批量登陆

HtmlElement btnSubmit=webBrowser1.Document.All["login_img"]; //获取提交按钮

HtmlElement tbUserid=tbUserid = webBrowser1.Document.getElementById("username");     //获取用户名框

HtmlElement tbPasswd= tbPasswd = webBrowser1.Document.getElementById("password");    //获取密码框

tbUserid.SetAttribute("value", strArray[0]); // 设置值
tbPasswd.SetAttribute("value", strArray[1]);
btnSubmit.InvokeMember("click");  //操作/单击