malloc: *** error for object 0x15f8a3558: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
内存出现泄漏(野指针), 在调试的时候command + < ,选择debug,在发布的时候选择release.
原文：http://www.cnblogs.com/yujidewu/p/5340965.html