ios - NSNotFound 比较不起作用
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<b>已结束。</b>此问题是 <a href="https://stackoverflow.com/help/closed-questions" rel="noreferrer noopener nofollow">not reproducible or was caused by typos</a> .它目前不接受答案。
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>2147483647 <em>是</em> NSNotFound(在某些情况下也称为-1)。您测试测试成功或失败的方式有问题，因为 Cocoa 本身的行为与宣传的完全一样。</p>
<pre><code>NSInteger indexOfCell = [ indexOfObject:@""];
NSLog(@"%d", indexOfCell); // some number
NSLog(@"%d", NSNotFound); // the same number
NSLog(@"%d", indexOfCell == NSNotFound); // 1, i.e. YES
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<p>自己试试吧。</p></p>
<p style="font-size: 20px;">关于ios - NSNotFound 比较不起作用，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/21321067/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/21321067/
</a>
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