UITableView 使用重用cell方法edequeueReusableCellWithIdentifier，出现错误：

 *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'unable to dequeue a cell with identifier cell3 - must register a nib or a class for the identifier or connect a prototype cell in a storyboard'

解决：

[self.tableView registerClass:[MyTableViewCell class] forCellReuseIdentifier:customCellIdentifier];

或

[self.tableView registerNib:[UINib nibWithNibName:@"MyTableViewCell" bundle:nil] forCellReuseIdentifier:customCellIdentifier];