问题:
objc_setAssociatedObject(@1, "xxxxx", @0, OBJC_ASSOCIATION_RETAIN);
objc_setAssociatedObject([NSIndexPath indexPathForRow:0 inSection:0], "xxsfsfsfs", @0, OBJC_ASSOCIATION_RETAIN);
如上,在ios7 64bit下,对NSNumber和NSIndexPath对象做objc_setAssociatedObject操作会导致崩溃
这里做个记录