tfhpple是一个用于解析html数据的第三方库，本人感觉功能还算可以，只不过在使用前必须配置项目。
配置
1.导入libxml2.tbd
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2.设置编译路径
使用
这里使用一个例子来说明
http://so.gushiwen.org/guwen/book_2.aspx
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1.创建TFHpple对象，data为网站返回的数据
TFHpple *htmlParser = [[TFHpple alloc] initWithHTMLData:data];
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2.使用searchWithXPathQuery方法得到有用数据，XPATH知识具体百度
NSArray *temp1 = [htmlParser searchWithXPathQuery:@"//div[@class='shileft']/div[@class='bookcont']"]
这样我们获取了论语的数据
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3。获取并分析元素
TFHppleElement *element = [elements objectAtIndex:i];
TFHppleElement对象包含许多属性，下面简单介绍一下各属性
1。
<strong>@property (nonatomic, copy, readonly) NSString *raw</strong>
raw是包含html标记的网页数据
<div class="bookcont"> <ul> <span><a href="/guwen/bookv_19.aspx">学而篇</a></span> <span><a href="/guwen/bookv_20.aspx">为政篇</a></span> <span><a href="/guwen/bookv_21.aspx">八佾篇</a></span> <span><a href="/guwen/bookv_22.aspx">里仁篇</a></span> <span><a href="/guwen/bookv_23.aspx">公冶长篇</a></span> <span><a href="/guwen/bookv_24.aspx">雍也篇</a></span> <span><a href="/guwen/bookv_25.aspx">述而篇</a></span> <span><a href="/guwen/bookv_26.aspx">泰伯篇</a></span> <span><a href="/guwen/bookv_27.aspx">子罕篇</a></span> <span><a href="/guwen/bookv_28.aspx">乡党篇</a></span> <span><a href="/guwen/bookv_29.aspx">先进篇</a></span> <span><a href="/guwen/bookv_30.aspx">颜渊篇</a></span> <span><a href="/guwen/bookv_31.aspx">子路篇</a></span> <span><a href="/guwen/bookv_32.aspx">宪问篇</a></span> <span><a href="/guwen/bookv_33.aspx">卫灵公篇</a></span> <span><a href="/guwen/bookv_34.aspx">季氏篇</a></span> <span><a href="/guwen/bookv_35.aspx">阳货篇</a></span> <span><a href="/guwen/bookv_36.aspx">微子篇</a></span> <span><a href="/guwen/bookv_37.aspx">子张篇</a></span> <span><a href="/guwen/bookv_38.aspx">尧曰篇</a></span> </ul> </div>
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立即学习“前端免费学习笔记（深入）”；
2.content是网页的具体数据，不包含html标记
学而篇 为政篇 八佾篇 里仁篇 公冶长篇 雍也篇 述而篇 泰伯篇 子罕篇 乡党篇 先进篇 颜渊篇 子路篇 宪问篇 卫灵公篇 季氏篇 阳货篇 微子篇 子张篇 尧曰篇
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立即学习“前端免费学习笔记（深入）”；
3.tagName是html标签
输出只有div
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4.attributes，属性。。。。。。。
<strong>class = bookcont;</strong>
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立即学习“前端免费学习笔记（深入）”；
5.children子节点
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nodeName = span;
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nodeContent = "\U9633\U8d27\U7bc7";
nodeName = span;
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}", "{
nodeContent = "\n ";
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}")
立即学习“前端免费学习笔记（深入）”；
立即学习“前端免费学习笔记（深入）”；
6.firstChild
{ nodeContent = "
"; nodeName = text;}
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上面属性都是涉及HTML语言的标记，我们一般使用的时content属性，然后处理得到的NSString对象
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这样我们就得到并处理为我们想要的数据。TFHppleElement是一个很重要的类，具体使用在这里就不介绍了。
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