iOS自定义文字高度添加行间距

在创建cell时- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

NSString * sttr = [NSString stringWithFormat:@"%@%@",arrayload[indexPath.row],arraymodeltext[indexPath.row]];

                NSMutableAttributedString * strAttebute = [[NSMutableAttributedString alloc] initWithString:sttr ];

                //设置行间距
                NSMutableParagraphStyle * paragraphStlyle = [[NSMutableParagraphStyle alloc] init];
                [paragraphStlyle setLineSpacing:IPHONEHIGHT()];
                [strAttebute addAttribute:NSParagraphStyleAttributeName value:paragraphStlyle range:NSMakeRange(, sttr.length)];

                [strAttebute addAttribute:NSForegroundColorAttributeName value:qianse range:NSMakeRange(, [arrayload[indexPath.row] length])];

                full.labelText.attributedText = strAttebute;

                CGSize contentSize = [sttr  boundingRectWithSize:CGSizeMake(ScreenWidth-IPHONEHIGHT(),MAXFLOAT ) options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:IPHONEWIDTH()]} context:NULL].size;

                full.labelText.size =CGSizeMake(contentSize.width, contentSize.height);

                height0 = contentSize.height;

                return full;