原因是:出现项目中加入了“断点”! 真特么逗~
The problem was I normally develop with a breakpoint set to "All Exceptions", and the actual exception thrown was __cxa_throw. Which apparently turns out to be in C++ libraries that are used to implement AVAudioPlayer. By changing the breakpoint to "All Objective-C Exceptions" the program ran fine. (This can be done by editing the breakpoint and changing the Exception field to Objective-C.
在 stackoverflow.com/ 网站上有相关bug解释!
具体点看这 -----> stackoverflow.com/search 膜拜大神!
把下图1所示的断点去掉就OK啦!
图1
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