适应症和用法

Question

鉴于html文件的这一部分，我正在寻找一种方法从“Metronidazole ......”开始提取文本到“指示和使用”下的结尾。

有什么建议吗？

<div class="Section" data-sectionCode="34067-9">
<a name="section-4"></a>
<p></p>
<h1>
<span class="Bold">INDICATIONS &amp; USAGE
</span>
</h1>
<p class="First">Metronidazole vaginal gel USP, 0.75% is indicated in the treatment of bacterial vaginosis (formerly referred to as <span class="Italics">Haemophilus</span> vaginitis, <span class="Italics">Gardnerella</span> vaginitis, nonspecific vaginitis, <span class="Italics">Corynebacterium</span> vaginitis, or anaerobic vaginosis).</p>
<dl>
<dt></dt>
<dd>
<p class="First">
<span class="Bold">NOTE:</span> For purposes of this indication, a clinical diagnosis of bacterial vaginosis is usually defined by the presence of a homogeneous vaginal discharge that (a) has a pH of greater than 4.5, (b) emits a &ldquo;fishy&rdquo; amine odor when mixed with a 10% KOH solution, and (c) contains clue cells on microscopic examination. Gram&rsquo;s stain results consistent with a diagnosis of bacterial vaginosis include (a) markedly reduced or absent <span class="Italics">Lactobacillus</span> morphology, (b) predominance of <span class="Italics">Gardnerella</span> morphotype, and (c) absent or few white blood cells.</p>
</dd>
</dl>
<p>Other pathogens commonly associated with vulvovaginitis, e.g., <span class="Italics">Trichomonas vaginalis</span>, <span class="Italics">Chlamydia trachomatis</span>, <span class="Italics">N</span>. <span class="Italics">gonorrhoeae</span>, <span class="Italics">Candida albicans</span>, and <span class="Italics">Herpes simplex</span> virus should be ruled out.</p>
</div>

适应症和用法

甲硝唑阴道凝胶USP，0.75％用于治疗细菌性阴道病（以前称为嗜血杆菌性阴道炎，加德纳菌阴道炎，非特异性阴道炎，棒状杆菌性阴道炎或无氧性阴道病）。

: 注意：就本适应症而言，细菌性阴道病的临床诊断通常由均质阴道分泌物的存在来定义：（a）pH值大于4.5，（b）混合时会发出“鱼腥”的胺气味。 10％KOH溶液，和（c）在显微镜检查中含有线索细胞。革兰氏染色结果与细菌性阴道病的诊断一致，包括（a）乳杆菌形态明显减少或缺失，（b）加德纳菌形态优势，（c）白细胞缺失或少数。

应排除通常与外阴阴道炎相关的其他病原体，例如阴道毛滴虫，沙眼衣原体，淋病奈瑟菌，白色念珠菌和单纯疱疹病毒。

Answer 1

你可以使用一些旧的学校技巧，

首先将NSString转换为字符数组（源数组）。
创建一个空目标字符数组。
开始使用逻辑将字符从源添加到目标数组。
如果您发现＆＃39;＆lt;＆＃39; （html标记的开头）字符停止在目标数组中添加字符，直到找到＆＃39;＆gt;＆＃39; （html标签的结尾）字符。

或者您可以使用其他特技

NSString* startTag = @"<";
NSString* endTag = @">";
NSString* replacementString = @"";

 while ([str rangeOfString:startTag].length != 0 && [str rangeOfString:endTag].length != 0)
{

  NSRange range1 = [str rangeOfString:startTag];
  NSRange range2 = [str rangeOfString:endTag];

  if(range1.location>range2.location)
   break;

NSRange newRange;
newRange.length =range2.location-range1.location+range2.length;
newRange.location = range1.location;
str = [str stringByReplacingCharactersInRange:newRange withString:replacementString];

  }

然后您可以按照＆＃34;指示＆amp;中所述找到文本。 USAGE＆＃34;通过rangeOfString方法，您希望的文本应该在此范围之后。

从html文件中提取字符串

适应症和用法

1 个答案: