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請問這是什么原因呢(IOS 初學者提問)？

? ?您好，按照您的視頻編寫代碼。這里報錯，請問這是什么原因呢？

???AVObject?*item?=?self.dataArray[indexPath.row];???
???HomeTableViewCell??*cell?=?[tableView?dequeueReusableCellWithIdentifier:@"cell"];
???cell.textLabel.text?=?[item?objectForKey:@"content"];
???cell.currItem?=item;//這里報錯

? ? ? ??

錯誤信息：
-[UITableViewCell?setCurrItem:]:?unrecognized?selector?sent?to?instance?0x7fa2d0049a002018-06-03?00:56:47.535675+0800?LeancloudDemo[1665:60725]?***?Terminating?app?due?to?uncaught?exception?'NSInvalidArgumentException',?reason:?'-[UITableViewCell?setCurrItem:]:?unrecognized?selector?sent?to?instance?0x7fa2d0049a00'***?First?throw?call?stack: