【问题现象】
在block块中使用self时报警告：self strongly in this block is likely to lead to a retain cycle
【问题解决】
__block ViewController *blockSelf = self;_block = ^{ [blockSelf->_items addObject:@"Hello!"];};
「ios」block块中使用self
原文：http://www.cnblogs.com/ftrako/p/7473098.html
