今天我得到了一个错误的解释:)只有一个问题:我不理解它:(那么当我得到这个错误时,我做错了什么?
2012-04-30 03:04:35.737 Barz[21961:11903] An instance 0x7491960 of class BarAnnotation was deallocated while key value observers were still registered with it. Observation info was leaked, and may even become mistakenly attached to some other object.