在数据源中，我更新了第4节取决于中的行数第3节.从中删除行时第3节，第4节中的行数从0到1.这似乎导致问题.有没有办法避免这个吗?

In datasource, I update section 4 depending on the number of rows in section 3. When a row is deleted from section 3, number of rows in section 4 goes from 0 to 1. This seems to cause the issue. Is there no way to avoid this?

使用 deleteRowsAtIndexPaths:withAnimation 时，您保证数据源将只删除具有指定索引路径的行.在您的情况下，您还将在表中插入一行，这意味着数据源的状态与表视图所期望的状态不同.

When using deleteRowsAtIndexPaths:withAnimation you are guaranteeing that the data source will have removed just the rows with the specified index paths. In your case you are also inserting a row into the table which means that state of the data source is not what the table view expects.

在第3节中删除一行还涉及在第4节中插入一行时，您必须执行以下操作:

When deleting a row in section 3 that also involves inserting a row in section 4 you must do something like:

[self.tableView beginUpdates];
[self.tableView [NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
[self.tableView insertRowsAtIndexPath:[NSArray arrayWithObject:indexPathForInsertedRow] withRowAnimation:UITableViewRowAnimationFade];
[self.tableView endUpdates];