objective-c - iOS collectionview insertItemsAtIndexPaths的的bug

Question

[self.collectionView insertItemsAtIndexPaths:indexPaths];
我这老报错
attempt to insert item 11 into section 0, but there are only 10 items in section 0 after the update

但是我打印的正好10个数据啊

Answer 1

数组越界问题