error: Execution was interrupted, reason: EXC_BAD_ACCESS (code=1, address=0x54485250). The proces...

打断点看日志的时候发现这个问题

error: Execution was interrupted, reason: EXC_BAD_ACCESS (code=1, address=0x54485250).
The process has been returned to the state before expression evaluation.

如图:


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转载自blog.csdn.net/jwheat/article/details/80669876