//方法一
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];//方法二
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {MeetingReplyBasicCell *cell = [tableView dequeueReusableCellWithIdentifier:@"BasicCell" forIndexPath:indexPath];if (!cell) {cell = [[MeetingReplyBasicCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"BasicCell"];}return cell;
}

//UITableView.h
- (nullable __kindof UITableViewCell *)dequeueReusableCellWithIdentifier:(NSString *)identifier;  // Used by the delegate to acquire an already allocated cell, in lieu of allocating a new one.- (__kindof UITableViewCell *)dequeueReusableCellWithIdentifier:(NSString *)identifier forIndexPath:(NSIndexPath *)indexPath NS_AVAILABLE_IOS(6_0); // newer dequeue method guarantees a cell is returned and resized properly, assuming identifier is registered

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {MeetingReplyBasicCell *cell = [tableView dequeueReusableCellWithIdentifier:@"BasicCell"];if (!cell) {cell = [[MeetingReplyBasicCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"BasicCell"];}return cell;
}

//首先，我们再tableview进行配置的时候需要注册我们已定义的cell类和重用标识符
self.tableView.backgroundColor = xxxx;
[self.tableView registerClass:[MeetingReplyBasicCell class] forCellReuseIdentifier:@"BasicCell"];

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {MeetingReplyBasicCell *cell = [tableView dequeueReusableCellWithIdentifier:@"BasicCell" forIndexPath:indexPath];return cell;
}