HHtextField为自定义的 textfield 

personalInfoTextField.indexPath = indexPath;

//要实现的Delegate方法,键盘next下跳

- (BOOL)textFieldShouldReturn:(UITextField *)textField {

    if(textField.returnKeyType==UIReturnKeyNext){       //显示下一个

        NSIndexPath *indexPath=((HHTextField *)textField).indexPath;

        NSIndexPath *nextIndexPath=[NSIndexPath indexPathForRow:(indexPath.row+1) inSection:indexPath.section];

        UITableViewCell *cell=[_personDataTableView cellForRowAtIndexPath:nextIndexPath];

        HHTextField *nextTextField=(HHTextField *)[cell viewWithTag:1162];

        [nextTextField becomeFirstResponder];

    }

    return YES;

}