删除部分NSString [英] Remove part of an NSString

问题描述

我有一个NSString如下：

I have an NSString as follows:

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我只需要第一部分（在之前< a href part），我无法弄清楚如何删除第二部分。

I only need the first part (before the <a href part), and I cannot figure out how to remove the second part.

我尝试了一下，但它没有用。

I have tried a ton, but it has not worked.

推荐答案

使用类似于：

NSRange rangeOfSubstring = [string rangeOfString:@"<a href"];

if(rangeOfSubstring.location == NSNotFound)
{
     // error condition — the text '<a href' wasn't in 'string'
}

// return only that portion of 'string' up to where '<a href' was found
return [string substringToIndex:rangeOfSubstring.location];

所以两个相关的方法是 substringToIndex：和 rangeOfString：。

So the two relevant methods are substringToIndex: and rangeOfString:.

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