使用“ stringbyevaluatingjavascriptfromstring”获取<a href='XXXX'>目标C</a>中<a href='XXXX'>标记中</a>的链接

Question

I have html code like this 我有这样的HTML代码

<html>
  <head>
  </head>
  <body>
    <a href='001'><img src='chp1.png'/></a>
    <a href='002'><img src='chp2.png'/></a>
</body></html>

I want to get 001 or 002 in by use stringbyevaluatingjavascriptfromstring 我想通过使用stringbyevaluatingjavascriptfromstring获得001或002

like 喜欢

[self.webView stringByEvaluatingJavaScriptFromString:@""];

have anyone know how to get it 有谁知道如何得到它

Thx 谢谢

Answer 1

I don't think -stringByEvaluatingJavaScriptFromString: is a good choice here. 我认为-stringByEvaluatingJavaScriptFromString:在这里不是很好的选择。 Try using an NSScanner : 尝试使用NSScanner ：

NSScanner* scanner = [NSScanner scannerWithString:yourHTML];
while ([scanner scanUpToString:@"a href='" intoString:nil])
{
    [scanner scanString:@"a href='" intoString:nil];
    NSString* result = nil;
    [scanner scanUpToString:@"'" intoString:&result];
    //Do something with result, which will equal 001, then 002, etc.
}

Note that if you need to parse HTML you didn't write yourself, you'll need to add a lot more flexibility to this to account for possible stylistic differences (eg ' vs " , href vs HREF ). 请注意，如果您需要解析不是编写自己的HTML，则需要为此增加更多的灵活性，以解决可能的样式差异（例如' vs " ， href vs HREF ）。

使用“ stringbyevaluatingjavascriptfromstring”获取<a href='XXXX'>目标C</a>中<a href='XXXX'>标记中</a>的链接

问题描述

1 个解决方案

解决方案1
3 已采纳 2012-07-12 05:19:03

使用“ stringbyevaluatingjavascriptfromstring”获取<a href='XXXX'>目标C</a>中<a href='XXXX'>标记中</a>的链接

问题描述

1 个解决方案

解决方案1 3 已采纳 2012-07-12 05:19:03

解决方案1
3 已采纳 2012-07-12 05:19:03