我不知道你應該從他們身上得到什麼。但是我會給你提供你需要的所有數據。
首先我們加載HTML。
string html = "<tr>" +
"<td>" +
"<div onmouseover = \"toggle('clue_J_1_1', 'clue_J_1_1_stuck', '<em class="correct_response">Obama</em><br/><br/><table width="100%"><tr><td class="right">Kailyn</td></tr></table>')\" onmouseout = \"toggle('clue_J_1_1', 'clue_J_1_1_stuck', 'Michelle LaVaughn Robinson')\" onclick = \"togglestick('clue_J_1_1_stuck')\"></div></td></tr>";
HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html);
//Console.WriteLine(doc.DocumentNode.OuterHtml);
然後我們得到屬性值onmouseover。
string toggle = doc.DocumentNode.SelectSingleNode("//tr//td/div[@onmouseover]").GetAttributeValue("onmouseover", "FAILED");
如果未能找到名爲「onmouseover」的屬性,它將返回FAILED。現在我們得到toggle方法的參數,每個參數都被兩個'(撇號)括起來。
//Get Variables from toggle()
List<string> toggleVariables = new List<string>();
bool flag = false; string temp = "";
for(int i=0; i<toggle.Length; i++)
{
if (toggle[i] == '\'' && flag== true)
{
toggleVariables.Add(temp);
temp = "";
flag = false;
}
else if (flag)
{
temp += toggle[i];
}
else if (toggle[i] == '\'')
{
flag = true;
}
}
之後,我們有一個列表與3個實體。在這種情況下,它將包含以下內容。
- clue_J_1_1
- clue_J_1_1_stuck
- < EM類= " correct_response " >奧巴馬</EM > < BR/> < BR/> <表寬度= " 100%" > <TR> < TD類= " right " > Kailyn </td > </tr > < /表>;
現在我們可以用第三個參數的HTML代碼創建一個新的HtmlDocument。但首先我們必須將它轉換爲可用的HTML,因爲第三個參數包含HTML中的轉義字符。
//Make it into workable HTML
toggleVariables[2] = HttpUtility.HtmlDecode(toggleVariables[2]);
//New HtmlDocument
HtmlDocument htmlInsideToggle = new HtmlDocument();
htmlInsideToggle.LoadHtml(toggleVariables[2]);
Console.WriteLine(htmlInsideToggle.DocumentNode.OuterHtml);
並完成。其中的代碼全部在這裏。
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using HtmlAgilityPack;
using System.Web;
namespace test
{
class Program
{
public static void Main(string[] args)
{
string html = "<tr>" +
"<td>" +
"<div onmouseover = \"toggle('clue_J_1_1', 'clue_J_1_1_stuck', '<em class="correct_response">Obama</em><br/><br/><table width="100%"><tr><td class="right">Kailyn</td></tr></table>')\" onmouseout = \"toggle('clue_J_1_1', 'clue_J_1_1_stuck', 'Michelle LaVaughn Robinson')\" onclick = \"togglestick('clue_J_1_1_stuck')\"></div></td></tr>";
HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html);
//Console.WriteLine(doc.DocumentNode.OuterHtml);
string toggle = doc.DocumentNode.SelectSingleNode("//tr//td/div[@onmouseover]").GetAttributeValue("onmouseover", "FAILED");
//Clean up string
//Console.WriteLine(toggle);
//Get Variables from toggle()
List<string> toggleVariables = new List<string>();
bool flag = false; string temp = "";
for(int i=0; i<toggle.Length; i++)
{
if (toggle[i] == '\'' && flag== true)
{
toggleVariables.Add(temp);
temp = "";
flag = false;
}
else if (flag)
{
temp += toggle[i];
}
else if (toggle[i] == '\'')
{
flag = true;
}
}
//Make it into workable HTML
toggleVariables[2] = HttpUtility.HtmlDecode(toggleVariables[2]);
//New HtmlDocument
HtmlDocument htmlInsideToggle = new HtmlDocument();
htmlInsideToggle.LoadHtml(toggleVariables[2]);
Console.WriteLine(htmlInsideToggle.DocumentNode.OuterHtml);
//You're on your own from here
Console.ReadKey();
}
}