谁能帮我看一下C# WebBrowser如何重写执行网页中的js代码
我想写一段代码，跳过视频播放前的验证码网站的js脚本 和我写的代码如下，但是却无效，谁能帮我看一下啊
<SCRIPT language=javascript type=text/javascript>
var startTime = new Date();
function t() {
var validWait = 30000;
var endTime = new Date();
var validPeriod = endTime - startTime;
if (validPeriod < validWait) {
}
else {
alert("没有在" + validWait / 1000 + "秒内回答正确,课程即将退出");
top.close();
}
tt=setTimeout(t, 1000);
}
t();
function valid() {
$.get("codeimg.aspx?answer=" + $("#validanswer").val() + "&" + Math.random(), function(data) {
if (data == 0) {
alert("答案错误");
ChangeCodeImg();
}
if (data == 1) {
document.getElementById("playframe").style.display = '';
window.clearTimeout(tt);
//ChangeCodeImg();
closeLayer();
document.getElementById("playframe").src = framesrc;
}
});
}
function ChangeCodeImg() {
var a = "CodeImg.aspx?" + rand(10000000);
$.each($(".ImageCheck"), function() {
$(this).attr("src", a);
});
}
function rand(number) {
return Math.ceil(rnd() * number);
}
rnd.today = new Date();
rnd.seed = rnd.today.getTime();
function rnd() {
rnd.seed = (rnd.seed * 9301 + 49297) % 233280;
return rnd.seed / (233280.0);
};
//弹出层
function openLayer(objId, conId) {
var arrayPageSize = getPageSize(); //调用getPageSize()函数
var arrayPageScroll = getPageScroll(); //调用getPageScroll()函数
if (!document.getElementById("popupAddr")) {
//创建弹出内容层
var popupDiv = document.createElement("div");
//给这个元素设置属性与样式
popupDiv.setAttribute("id", "popupAddr")
popupDiv.style.position = "absolute";
//popupDiv.style.border = "1px solid #ccc";
//popupDiv.style.background = "#FF0000";
popupDiv.style.zIndex = 99;
//创建弹出背景层
var bodyBack = document.createElement("div");
bodyBack.setAttribute("id", "bodybg")
bodyBack.style.position = "absolute";
bodyBack.style.width = "100%";
bodyBack.style.height = (arrayPageSize[1] + 35 + 'px');
bodyBack.style.zIndex = 98;
bodyBack.style.top = 0;
bodyBack.style.left = 0;
bodyBack.style.filter = "alpha(opacity=30)";
bodyBack.style.opacity = 0;
bodyBack.style.background = "#000000";
//实现弹出(插入到目标元素之后)
var mybody = document.getElementById(objId);
insertAfter(popupDiv, mybody); //执行函数insertAfter()
insertAfter(bodyBack, mybody); //执行函数insertAfter()
}
//显示背景层
document.getElementById("bodybg").style.display = "";
//显示内容层
var popObj = document.getElementById("popupAddr")
popObj.innerHTML = document.getElementById(conId).innerHTML;
popObj.style.display = "";
//让弹出层在页面中垂直左右居中(统一)
// popObj.style.width = "600px";
// popObj.style.height = "400px";
// popObj.style.top = arrayPageScroll[1] + (arrayPageSize[3] - 35 - 400) / 2 + 'px';
// popObj.style.left = (arrayPageSize[0] - 20 - 600) / 2 + 'px';
//让弹出层在页面中垂直左右居中(个性)
var arrayConSize = getConSize(conId)
popObj.style.top = arrayPageScroll[1] + (arrayPageSize[3] - arrayConSize[1]) / 2 - 50 + 'px';
popObj.style.left = (arrayPageSize[0] - arrayConSize[0]) / 2 - 50 + 'px';
}
//获取内容层内容原始尺寸
function getConSize(conId) {
var conObj = document.getElementById(conId)
conObj.style.position = "absolute";
conObj.style.left = -1000 + "px";
conObj.style.display = "";
var arrayConSize = [conObj.offsetWidth, conObj.offsetHeight]
conObj.style.display = "none";
return arrayConSize;
}
function insertAfter(newElement, targetElement) {//插入
var parent = targetElement.parentNode;
if (parent.lastChild == targetElement) {
parent.appendChild(newElement);
}
else {
parent.insertBefore(newElement, targetElement.nextSibling);
}
}
//获取滚动条的高度
function getPageScroll() {
var yScroll;
if (self.pageYOffset) {
yScroll = self.pageYOffset;
} else if (document.documentElement && document.documentElement.scrollTop) {
yScroll = document.documentElement.scrollTop;
} else if (document.body) {
yScroll = document.body.scrollTop;
}
arrayPageScroll = new Array('', yScroll)
return arrayPageScroll;
}
//获取页面实际大小
function getPageSize() {
var xScroll, yScroll;
if (window.innerHeight && window.scrollMaxY) {
xScroll = document.body.scrollWidth;
yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight > document.body.offsetHeight) {
xScroll = document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else {
xScroll = document.body.offsetWidth;
yScroll = document.body.offsetHeight;
}
var windowWidth, windowHeight;
if (self.innerHeight) {
windowWidth = self.innerWidth;
windowHeight = self.innerHeight;
} else if (document.documentElement && document.documentElement.clientHeight) {
windowWidth = document.documentElement.clientWidth;
windowHeight = document.documentElement.clientHeight;
} else if (document.body) {
windowWidth = document.body.clientWidth;
windowHeight = document.body.clientHeight;
}
var pageWidth, pageHeight
if (yScroll < windowHeight) {
pageHeight = windowHeight;
} else {
pageHeight = yScroll;
}
if (xScroll < windowWidth) {
pageWidth = windowWidth;
} else {
pageWidth = xScroll;
}
arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight)
return arrayPageSize;
}
//关闭弹出层
function closeLayer() {
document.getElementById("popupAddr").style.display = "none";
document.getElementById("bodybg").style.display = "none";
return false;
}
ChangeCodeImg();
openLayer("maindiv", "poplayer");
var framesrc = "";
$(document).ready(function() {
framesrc = document.getElementById("playframe").src;
document.getElementById("playframe").src = "";
});
</SCRIPT>
--------------------编程问答-------------------- 上面是网站弹出验证码的代码，下面是我写的代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
//下面2个组件需要在vs中添加引用
using mshtml;//添加引用 -> .Net ->Microsoft.mshtml
using SHDocVw;//添加引用 ->com->MicroSoft Internet Controls
namespace AutoClickConfirm
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
SHDocVw.WebBrowser wb;
mshtml.IHTMLDocument2 doc;
private void btnNavigator_Click(object sender, EventArgs e)
{
string url = cmbUrl.Text.Trim().ToLower();
if (url.StartsWith("http://") || url.StartsWith("https://"))
{
webBrowser1.Navigate(url);
wb = webBrowser1.ActiveXInstance as SHDocVw.WebBrowser;
wb.NavigateComplete2 += new DWebBrowserEvents2_NavigateComplete2EventHandler(wb_NavigateComplete2);
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
void wb_NavigateComplete2(object pDisp, ref object URL)
{
doc = wb.Document as mshtml.IHTMLDocument2;
//执行javascript脚本，覆盖系统的confirm函数，直接return true，这样调用confirm函数都会执行到确认按钮了，同理可以重写系统中的其他函数
//doc.parentWindow.execScript("function confirm(){return true;}", "javascript");
//doc.parentWindow.execScript("function alert(){}", "javascript");//设置为alert为空函数体，就不会挂起javascript代码执行了
doc.parentWindow.execScript("function function(data){return 1;}", "javascript");
doc.parentWindow.execScript("function valid(){document.getElementById('playframe').style.display = ''; window.clearTimeout(tt); closeLayer(); document.getElementById'playframe').src = framesrc; }", "javascript");
//document.invertscript("(函数名就行)");
}
private void btnGo_Click(object sender, EventArgs e)
{
webBrowser1.Navigate(cmbUrl.Text);
}
}
}
补充：.NET技术 , C#
