iOS.Crash.[__NSArrayM objectForKeyedSubscript:]

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1. [__NSArrayM objectForKeyedSubscript:]: unrecognized selector sent to instance - source code and screenshot attached

http://stackoverflow.com/questions/21268539/nsarraym-objectforkeyedsubscript-unrecognized-selector-sent-to-instance

2. 关于objectforkeyedsubscript

http://nshipster.com/object-subscripting/

3. NSArray Returning String Instead of Dictionary

http://stackoverflow.com/questions/18782053/nsarray-returning-string-instead-of-dictionary

这是由于下面的调用预期返NSDictionary, 然后没有检查返回id 对象的真正类型，而直接

jsonObject[@"key"]; 这样就导致该类的Crash发生。

1 id jsonObject = [NSJSONSerialization JSONObjectWithData:jsonResponse options:kNilOptions error:nil];

iOS.Crash.[__NSArrayM objectForKeyedSubscript:]

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原文地址：http://www.cnblogs.com/cwgk/p/4534216.html